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A026981 a(n) = self-convolution of array T given by A026670. 0
1, 2, 11, 34, 173, 586, 2917, 10262, 50503, 181334, 885831, 3221146, 15652239, 57405038, 277822147, 1025177314, 4945846997, 18333973274, 88224662549, 328195843910, 1576001732485, 5879010027618, 28181895551161, 105362519875518, 504329070986033, 1888952213601906 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..25.

CROSSREFS

Sequence in context: A026971 A323683 A071801 * A027223 A027229 A026946

Adjacent sequences: A026978 A026979 A026980 * A026982 A026983 A026984

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

More terms from Sean A. Irvine, Oct 20 2019

STATUS

approved

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Last modified December 6 10:03 EST 2022. Contains 358630 sequences. (Running on oeis4.)