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Search: id:A027115
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A027115 a(n) = T(n,0) + T(n,1) + ... + T(n,2n), T given by A027113. +0
1
1, 4, 11, 31, 87, 246, 700, 2003, 5758, 16616, 48102, 139625, 406214, 1184138, 3457771, 10112245, 29613029, 86824136, 254840534, 748725393, 2201731878, 6479790418, 19084605389, 56247812793, 165884498711, 489512360356 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A104743 A165993 A004080 this_sequence A077995 A076730 A084757

Adjacent sequences: A027112 A027113 A027114 this_sequence A027116 A027117 A027118

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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