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Search: id:A026948
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A026948 a(n) = Sum{T(n,k)*T(n,k+2)}, 0<=k<=n-2, T given by A026374. +0
1
1, 8, 58, 272, 1770, 7428, 46928, 189808, 1185645, 4724160, 29362806, 116207424, 720606705, 2842936320, 17610412600, 69378730880, 429579843435 (list; graph; listen)
OFFSET

2,2

CROSSREFS

Sequence in context: A002402 A015464 A144781 this_sequence A111585 A055839 A081897

Adjacent sequences: A026945 A026946 A026947 this_sequence A026949 A026950 A026951

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.


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