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A027272 a(n) = self-convolution of row n of array T given by A026552. 0
1, 3, 19, 58, 462, 1608, 13446, 48924, 417440, 1553940, 13409576, 50618184, 440013462, 1676640462, 14649846820, 56201554888, 492944907180, 1900789437276, 16721000706580, 64734185205960, 570792185166764, 2216888144737508, 19584623363041704, 76265067399850848 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..23.

CROSSREFS

Sequence in context: A134268 A322209 A088798 * A164132 A106875 A215646

Adjacent sequences:  A027269 A027270 A027271 * A027273 A027274 A027275

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

More terms from Sean A. Irvine, Oct 26 2019

STATUS

approved

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Last modified July 7 15:49 EDT 2020. Contains 335495 sequences. (Running on oeis4.)