A026095 - OEIS

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A026095

a(n) = Sum{T(k,k-1)}, k = 1,2,...,n, where T is the array defined in A026082.

0

1, 3, 6, 9, 22, 55, 153, 431, 1235, 3555, 10278, 29793, 86562, 251983, 734776, 2145825, 6275148, 18373299, 53856156, 158025189, 464112300, 1364247183, 4013353935, 11815188003, 34807249137, 102606325139, 302646363728, 893175905781

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OFFSET

1,2

LINKS

Table of n, a(n) for n=1..28.

CROSSREFS

Equals A024998(n) + 3, n>1.

Sequence in context: A050889 A327140 A329863 * A061929 A358403 A318032

Adjacent sequences: A026092 A026093 A026094 * A026096 A026097 A026098

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved