A102461 Numbers n such that binomial(n,2) is in A027568.

1, 2, 5, 16, 56, 120

Offset

1,2

Links

Table of n, a(n) for n=1..6.

Crossrefs

Cf. A027568.

Sequence in context: A137732 A119611 A057973 * A176332 A191241 A052708

Adjacent sequences: A102458 A102459 A102460 * A102462 A102463 A102464

Keyword

nonn,fini,full

Author

N. J. A. Sloane, Sep 06 2008

Status

approved