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A026951 Self-convolution of array T given by A026386. 0
1, 2, 6, 34, 116, 678, 2438, 14494, 53538, 321590, 1207186, 7301142, 27702096, 168359754, 643682106, 3926147730, 15096518580, 92338836390, 356629256930 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..18.

CROSSREFS

Sequence in context: A192537 A026966 A026976 * A030233 A233396 A003499

Adjacent sequences:  A026948 A026949 A026950 * A026952 A026953 A026954

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified February 15 20:32 EST 2019. Contains 320138 sequences. (Running on oeis4.)