A023170 Numbers k such that Fibonacci(k) == -55 (mod k).

1, 2, 3, 5, 10, 20, 70, 110, 116, 130, 170, 230, 285, 322, 370, 430, 470, 494, 530, 555, 620, 670, 730, 770, 830, 970, 1030, 1070, 1130, 1270, 1334, 1370, 1570, 1630, 1670, 1730, 1930, 1970, 2230, 2270, 2330, 2530, 2570, 2630, 2770, 2830, 2870, 2930, 3070

Offset

1,2

Links

Table of n, a(n) for n=1..49.

Mathematica

Select[ Range[ 3100], Mod[ Mod[ Fibonacci[ #], #] + 55 - #, #] == 0 &] (* Harvey P. Dale, Jan 20 2012, modified by Robert G. Wilson v Sep 04 2013 *)

Crossrefs

Cf. A000045.

Sequence in context: A367216 A352945 A076834 * A125312 A300550 A014626

Adjacent sequences: A023167 A023168 A023169 * A023171 A023172 A023173

Keyword

nonn

Author

David W. Wilson

Status

approved