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A126345 Main diagonal of triangle A126343. 1
1, 2, 12, 152, 2430, 45222, 991571, 26447976, 820357488, 28305482450, 1085325479073, 46235590117092, 2158387195914560, 109266107109056562, 5971923549022596600 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..15.

EXAMPLE

a(n) appears to be divisible by n:

a(n)/n = [1,1,4,38,486,7537,141653,3305997,91150832,2830548245,...].

CROSSREFS

Cf. A126343.

Sequence in context: A279011 A279183 A126777 * A229558 A208582 A000795

Adjacent sequences:  A126342 A126343 A126344 * A126346 A126347 A126348

KEYWORD

more,nonn

AUTHOR

Paul D. Hanna, Dec 25 2006

EXTENSIONS

More terms from Paul D. Hanna, Jan 03 2007

STATUS

approved

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Last modified April 20 03:02 EDT 2021. Contains 343121 sequences. (Running on oeis4.)