A128933 - OEIS

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A128933

A103828(n) + 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