A287821 a(n) is the index of the largest Fibonacci number A065108(n) is divisible by.

2, 3, 4, 3, 5, 4, 6, 4, 5, 4, 7, 5, 6, 4, 5, 8, 6, 5, 7, 4, 5, 6, 9, 4, 7, 6, 8, 5, 6, 5, 7, 4, 10, 5, 8, 6, 7, 9, 6, 5, 7, 6, 4, 8, 11, 5, 6, 5, 9, 7, 8, 4, 10, 7, 6, 5, 8, 6, 7, 5, 9, 12, 5, 7, 6, 4, 10, 8, 7, 9, 11, 5, 8, 6, 7, 6, 9, 7, 8, 6, 10, 5, 13, 7, 6

Offset: 1

Author

David A. Corneth, Jun 01 2017

Keywords

• nonn

Examples

			A065108(7) = 8 is divisible by fibonacci(6) = 8 and by no larger Fibonacci number. Therefore, a(7) = 6.
		

Links

• David A. Corneth, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A065108.