47, 40, 33, 26, 19, 12, and 5
Assume this is an arithmetic sequence (It is formed by continually adding or subtracting the same number.)
Because there are 7 missing numbers, there must have been 8 subtractions (the last one will produce the -2). The difference between the first and last terms is 54-(-2) = 54+2 = 56. Divide this by 8; the amount subtracted each time is 7. The missing numbers are 54-7 = 47, 47-7 = 40, ...
The sequence consists of perfect squares: (3^2 = 9), (4^2 = 16), (5^2 = 25), and (7^2 = 49). The missing number corresponds to (6^2), which is 36. Therefore, the missing number in the sequence is 36.
The sequence appears to be made up of the squares of consecutive integers: (1^2 = 1), (4^2 = 16), and (10^2 = 100). The missing number corresponds to (7^2), which is (49). Therefore, the missing number in the sequence is 49.
The sequence consists of the squares of consecutive integers: (1^2 = 1), (4^2 = 16), (10^2 = 100), and (13^2 = 169). The missing number corresponds to (7^2), which is (49). Therefore, the missing number in the sequence is (49).
The missing number is 26. The number after 29 is 58.
The given sequence appears to be composed of perfect squares: (1^2 = 1), (4^2 = 16), (10^2 = 100), and (13^2 = 169). The missing number corresponds to (7^2 = 49), which fits the sequence of perfect squares. Thus, the missing number is 49.
The sequence consists of perfect squares: (3^2 = 9), (4^2 = 16), (5^2 = 25), and (7^2 = 49). The missing number corresponds to (6^2), which is 36. Therefore, the missing number in the sequence is 36.
The sequence appears to be made up of the squares of consecutive integers: (1^2 = 1), (4^2 = 16), and (10^2 = 100). The missing number corresponds to (7^2), which is (49). Therefore, the missing number in the sequence is 49.
The sequence consists of the squares of consecutive integers: (1^2 = 1), (4^2 = 16), (10^2 = 100), and (13^2 = 169). The missing number corresponds to (7^2), which is (49). Therefore, the missing number in the sequence is (49).
The missing number is 26. The number after 29 is 58.
178 is the answer By using the formula a{n} = n³ + n² + 5n + 3 For e.g. A{2} =2 ³ +2²+5*2+3=25 =8+4+10+3=25 And so on.    = 10, 25, 54, 103, 178
The given sequence appears to be composed of perfect squares: (1^2 = 1), (4^2 = 16), (10^2 = 100), and (13^2 = 169). The missing number corresponds to (7^2 = 49), which fits the sequence of perfect squares. Thus, the missing number is 49.
256 (each number is the square of the preceding number)
It is (5+37)/2 = 21.
The pattern looks like the previous number is multiplied by -3, hence the next number in the sequence would be (-54) x (-3) = 162
The missing number in this sequence is 64, or 4 raised to the third power. You find the answer by noting that each number in the sequence is a counting number starting at 1 that is raised to the third power. For example, 2 raised to the third power (2 x 2 x 2) is 8.
Dodging numbers may be missing numbers in a sequence. For example, the underscore in the following sequence represents such a number: 2, 4, _ , 8, 10.
The missing number is 5. They're the first five prime numbers.