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Search: id:A027228
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A027228 a(n) = Sum{(k+1)*T(n,n-k), 0<=k<=n, T given by A026747. +0
1
1, 3, 10, 25, 73, 170, 468, 1050, 2799, 6138, 16043, 34644, 89390, 190913, 488285, 1034228, 2628861, 5532322, 14000177, 29311171, 73936801, 154145390, 387911301, 805899231, 2024537328, 4193625311, 10521409964, 21738996250 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Adjacent sequences: A027225 A027226 A027227 this_sequence A027229 A027230 A027231

Sequence in context: A026975 A026985 A027227 this_sequence A026950 A095052 A131433

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.

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