One possible answer is:
Un = (-26n5 + 455n4 - 2990n3 + 9100n2 - 12659n + 8130)/30 for n = 1, 2, 3, ...
To find the term number when the term value is 53 in a sequence, you need to know the pattern or formula of the sequence. If it is an arithmetic sequence with a common difference of d, you can use the formula for the nth term of an arithmetic sequence: ( a_n = a_1 + (n-1)d ), where ( a_n ) is the nth term, ( a_1 ) is the first term, and d is the common difference. By plugging in the values, you can solve for the term number.
The prime number is 53.
53 is a prime number between 48 and 58
379, but it does not complete the sequence which is infinite.
53
The next number is 485.
To find the next number in the sequence 4, 11, 25, 53, we can observe the differences between consecutive terms: 11 - 4 = 7, 25 - 11 = 14, and 53 - 25 = 28. The differences (7, 14, 28) double each time, suggesting the next difference should be 56. Adding this to the last number, 53 + 56, we get 109 as the next number in the sequence.
61
485
53 is the only prime number between 48 and 58.
485
485