A090863 - OEIS

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A090863

Numbers n such that F(n+1)*F(n-1)*B(2n) is an integer, where F(k)=k-th Fibonacci number and B(2k)=2k-th Bernoulli number.

1

1, 7, 13, 17, 19, 31, 37, 43, 47, 49, 59, 61, 67, 71, 73, 79, 91, 97, 101, 103, 107, 109, 121, 127, 133, 137, 139, 143, 149, 151, 157, 161, 163, 167, 169, 181, 193, 197, 199, 211, 217, 223, 227, 229, 241, 247, 257, 259, 263, 269, 271, 277, 283, 289

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OFFSET

1,2

COMMENTS

Differs from A045979 for some terms. Contains A053176.

LINKS

Table of n, a(n) for n=1..54.

CROSSREFS

Sequence in context: A038906 A097959 A156543 * A045979 A079699 A053176

Adjacent sequences: A090860 A090861 A090862 * A090864 A090865 A090866

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Feb 12 2004

STATUS

approved