A298686 Numbers i such that Fibonacci(i) is divisible by i+k for k=0,1,2,3,4.

13440, 19440, 19800, 24480, 49680, 61560, 104160, 229320, 298200, 311040, 329400, 436800, 471240, 600600, 1202040, 1299600, 1468800, 1564920, 1702800, 2031120, 2352240, 2402400, 2499840, 2762760, 2805600, 2937600, 2962080, 3150840, 3262680, 3405600, 3843840

Offset: 1

Author

Alex Ratushnyak, Jan 24 2018

Keywords

• nonn

Comments

A subsequence of A298685.

Links

• Chai Wah Wu, Table of n, a(n) for n = 1..147

Crossrefs

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

Programs

PARI

isone(n, k) = !(fibonacci(n) % (n+k));
isok(n) = isone(n,0) && isone(n,1) && isone(n,2) && isone(n,3) && isone(n,4); \\ Michel Marcus, Jan 28 2018

Extensions

More terms from Alois P. Heinz, Jan 25 2018