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A128933
A103828
(n) + 1.
1
2, 4, 10, 28, 70, 430, 1060, 56500, 166840, 5020060, 7681810, 274343590, 8316187180
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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 April 23 12:08 EDT 2024. Contains 371912 sequences. (Running on oeis4.)