A027239 Self-convolution of row n of array T given by A026769.

1, 2, 6, 26, 99, 456, 1898, 9014, 39336, 190852, 859314, 4240598, 19544133, 97854958, 459521694, 2330612590, 11118124352, 57054108568, 275911990190, 1431214323258, 7005088758798, 36699584733594, 181565142550974, 959959866168434, 4795243608222520, 25566993157191804

Offset

0,2

Links

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

Crossrefs

Sequence in context: A027207 A027231 A083845 * A191821 A290958 A323265

Adjacent sequences: A027236 A027237 A027238 * A027240 A027241 A027242

Keyword

nonn

Author

Clark Kimberling

Extensions

More terms from Sean A. Irvine, Oct 26 2019

Status

approved