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A026895 T(2n,n+2), T given by A026780. 0
1, 7, 38, 191, 935, 4547, 22166, 108790, 538668, 2692996, 13594954, 69281309, 356222591, 1846781939, 9647229202, 50744420578, 268591503348, 1429730471552, 7649564591070, 41117462702680, 221938325574492, 1202501072716220 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,2

LINKS

Table of n, a(n) for n=2..23.

CROSSREFS

Sequence in context: A026763 A217340 A037696 * A037605 A128726 A346395

Adjacent sequences:  A026892 A026893 A026894 * A026896 A026897 A026898

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified July 24 16:24 EDT 2021. Contains 346273 sequences. (Running on oeis4.)