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A027040 a(n) = self-convolution of row n of array T given by A027023. 1
1, 3, 9, 31, 129, 531, 2129, 8351, 32177, 122211, 458801, 1706015, 6293169, 23057651, 83992313, 304424639, 1098525761, 3948727555, 14145206209, 50515602111, 179904080257, 639103899411, 2265253438745, 8012421964063 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..23.

CROSSREFS

Sequence in context: A182968 A071603 A090595 * A111063 A245116 A255382

Adjacent sequences:  A027037 A027038 A027039 * A027041 A027042 A027043

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified May 25 21:59 EDT 2017. Contains 287060 sequences.