A080482 a(n) = A080481(n)/3.

0, 4, 115, 2263, 337040438, 50539060640, 7074108084209, 943101044111145, 121246131347141448, 15154916165017175118, 1852191953202054212155, 222256232357242458252559, 26266027276128286229296330

Offset

1,2

Links

Table of n, a(n) for n=1..13.

Crossrefs

Cf. A080481, A080483, A080484.

Sequence in context: A275747 A239942 A261457 * A340277 A206689 A198080

Adjacent sequences: A080479 A080480 A080481 * A080483 A080484 A080485

Keyword

base,easy,nonn,changed

Author

Amarnath Murthy, Mar 11 2003

Extensions

Corrected and extended by Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 06 2003

Status

approved