A255286 Set x=3 in polynomial corresponding to A253091(n).

1, 7, 13, 55, 142, 715, 757, 5299, 9841, 39367, 98422, 511771, 570862, 3818644, 7421206, 29800819, 74505454, 387410647, 387440173, 2712081211, 5036722249, 21309209515, 55016504566, 277019723695, 293292210961, 2053045476727, 3812798742493, 15251194969975, 38127987424942

Offset

0,2

Links

Table of n, a(n) for n=0..28.

Crossrefs

Cf. A253091, A255285, A182069.

Sequence in context: A193489 A091005 A015441 * A253210 A183180 A133664

Adjacent sequences: A255283 A255284 A255285 * A255287 A255288 A255289

Keyword

nonn

Author

N. J. A. Sloane, Feb 21 2015

Status

approved