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A128933 A103828(n) + 1. 1
2, 4, 10, 28, 70, 430, 1060, 56500, 166840, 5020060, 7681810, 274343590, 8316187180 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

CROSSREFS

Sequence in context: A278418 A321946 A244485 * A173781 A340825 A106362

Adjacent sequences:  A128930 A128931 A128932 * A128934 A128935 A128936

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Apr 28 2007

STATUS

approved

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Last modified January 21 19:21 EST 2022. Contains 350480 sequences. (Running on oeis4.)