The next number in this sequence is 13112221.
20
7203
13 18 16 21 19 24 22 27 25 ... . This series consists of adding 5 to the first number and subtracting 2 from the next number, repeating the sequence in that order.
The answer is 21.Your numerical series is the beginning of a mathematical sequence called Fibonacci Numbers.The first number of the sequence is 0, the second number is 1, and each subsequent number is equal to the sum of the previous two numbers of the sequence itself (i.e. 0, 1, 1, 2, 3, 5, 8, 13, 21, etc.).
16 21 22 29
It is: 34
It is 26 followed by 31
My guess: 2.5
26 As far as I can tell the sequence is +10,-5,+10,-5.
The next number in the sequence 3-15-6-30-21 is -207.
18
The next number in this sequence should be 33.
The next number in this sequence is 13112221.
20
7203
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