A299155 Numbers i such that Fibonacci(i) is divisible by i+k for k=0..6.

329400, 175472640, 808214400, 1367566200, 1928871000, 3433706640, 16109533440, 16916445000, 17847413640, 19507068000, 23163310800, 24961167000, 32645743200, 37263088800, 39803400000, 44915270400, 50238568800, 66072283200, 81924990840, 85368457440

Offset: 1

Author

Chai Wah Wu, Feb 03 2018

Keywords

• nonn

Comments

A subsequence of A298687.

Crossrefs

Cf. A000045, A023172, A217738, A221018, A225219, A298684, A298685, A298686, A298687.

Programs

PARI

fibomod(n,m) = lift(Mod([0,1;1,1],m)^(n+1))[1,1];
isok(n) = prod(k=0,6,fibomod(n,n+k)==0); \\ Silvester Resnik, May 18 2018

Extensions

a(7)-a(20) from Silvester Resnik, May 18 2018