A094413 Odd composites k that divide Fibonacci(k) + 1 but not Fibonacci(k+1).

17261, 120581, 163059, 300847, 1842581, 3489641, 3792541, 5573499, 21159271, 36561959, 40779991, 63055651, 67306519, 69503037, 72125899, 129487163, 136021717, 174008141, 175094767, 247600477, 418623283, 529281911, 814454381, 902315699

Offset

1,1

Links

David Radcliffe, Table of n, a(n) for n = 1..33 (first 24 terms from G. Resta)

Prog

(PARI) isok(n) = (n % 2) && ! ((fibonacci(n) + 1) % n) && (fibonacci(n+1) % n); \\ Michel Marcus, Aug 27 2013

Crossrefs

Cf. A094395, A094411, A094412.

Sequence in context: A293478 A076774 A236447 * A209967 A093790 A229683

Adjacent sequences: A094410 A094411 A094412 * A094414 A094415 A094416

Keyword

nonn

Author

Eric Rowland, May 07 2004

Extensions

4 more terms from Ryan Propper, Aug 03 2005

a(9)-a(24) from Giovanni Resta, Jul 20 2013

Status

approved