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Is 13 a Fibonacci number?
the first seven Fibonacci numbers are 1,1,2,3,5,8,13. 13 is a Fibonacci number.
What is one way to decide if two numbers follow a Fibonacci sequence?
They will always follow some Fibonacci sequence. If P and Q are any two numbers, then they belong to the Fibonacci sequence with the first two numbers as P and (Q-P).
What are the negative Fibonacci numbers called?
The negative Fibonacci numbers (also known as the Negafibonacci numbers) consist of the Fibonacci numbers in an alternating negative and positive pattern.The start of the Negafibonacci sequence runs thus:1, -1, 2, -3, 5, -8, 13, -21...And continues in a pattern identical to the Fibonacci numbers but with alternating negative and positive numbers.
What is the first positive non Fibonacci number?
Since zero is both a positive number (defined as such), and not part of the Fibonacci sequence, then the first positive non-Fibonacci number is zero (0). If zero does not fit in you definition of positive number, then the answer would be four (4).
What is the sum of the first seven Fibonacci numbers?
0 + 1 + 1 + 2 + 3 + 5 + 8 = 20
