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A080482 A080481(n)/3. 3
0, 4, 115, 2263, 337040438, 50539060640, 7074108084209, 943101044111145, 121246131347141448, 15154916165017175118, 1852191953202054212155, 222256232357242458252559, 26266027276128286229296330 (list; graph; refs; listen; history; text; internal format)
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

AUTHOR

Amarnath Murthy, Mar 11 2003

EXTENSIONS

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

STATUS

approved

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Last modified December 4 02:16 EST 2022. Contains 358544 sequences. (Running on oeis4.)