A160684 Numbers k >= 1 such that A000045(k)/A000005(k) is an integer.

1, 3, 4, 6, 12, 24, 30, 36, 42, 54, 60, 64, 66, 72, 78, 84, 96, 102, 108, 114, 120, 132, 138, 156, 168, 174, 180, 186, 192, 204, 216, 222, 228, 240, 246, 252, 258, 264, 276, 282, 288, 300, 312, 318, 348, 354, 360, 366, 372, 384, 396, 400, 402, 405, 408, 420, 426

Offset: 1

Author

Ctibor O. Zizka, May 23 2009

Keywords

• easy
• nonn

Links

• Robert Israel, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A000045, A000005, A377032. Includes A138636 except for 18.

Programs

Maple

A000045 := proc(n) combinat[fibonacci](n) ; end: A000005 := proc(n) numtheory[tau](n) ; end: for n from 1 to 580 do if A000045(n) mod A000005(n) = 0 then printf("%d,",n) ; fi; od: # R. J. Mathar, May 25 2009

Extensions

71 removed and sequence extended by R. J. Mathar, May 25 2009