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Search: id:A027043
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A027043 a(n) = Sum{(k+1)*T(n,k)}, 0<=k<=2n, T given by A027023. +0
2
1, 6, 23, 80, 285, 990, 3367, 11256, 37097, 120862, 390123, 1249728, 3978365, 12598350, 39718403, 124743104, 390491505, 1218875302, 3794984883, 11789335464, 36551285573, 113120066678, 349523991123, 1078402178776 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A034359 A114245 A078798 this_sequence A006815 A054491 A013261

Adjacent sequences: A027040 A027041 A027042 this_sequence A027044 A027045 A027046

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.

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