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A047087 T(2n,n+1), array T as in A047080. 0
1, 3, 7, 21, 57, 163, 461, 1319, 3781, 10887, 31435, 91017, 264133, 768095, 2237639, 6529285, 19079573, 55826167, 163538471, 479588845, 1407813437, 4136307799, 12163015661, 35793391663, 105407889929 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..25.

CROSSREFS

Sequence in context: A320803 A262184 A091489 * A104779 A178718 A244897

Adjacent sequences:  A047084 A047085 A047086 * A047088 A047089 A047090

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified July 4 12:18 EDT 2020. Contains 335448 sequences. (Running on oeis4.)