34
The sequence 1-1-2-3-5-8-13 is known as the Fibonacci sequence. In this sequence, each number is the sum of the two preceding ones, starting from 1 and 1. Thus, the next numbers would be 21 (13 + 8) and 34 (21 + 13). This pattern continues indefinitely.
Fibonacci sequence Fibonacci sequence
The sequence could continue: 7, 12, 9, 15, 11, 18, 13, 21, ...
21
13 21 34 55
Fibonacci Sequence
Fibonacci sequence Fibonacci sequence
The sequence could continue: 7, 12, 9, 15, 11, 18, 13, 21, ...
13, 21 - it is the Fibonacci sequence
13 3 2 21 1 1 8 5
This is called the Fibonacci sequence. The last two numbers in the sequence are added together to produce the next. Therefore, following 8 and 13 are: 8 + 13 = 21 13 + 21 = 34 21 + 34 = 55 34 + 55 = 89 55 + 89 = 144
21
1 5 9 13 17 21
It is: 1 1 2 3 5 8 13 and 21 which is the 8th term
26
13 21 34 55
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.).