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A027247
a(n) = self-convolution of row n of array T given by A026780.
0
1, 2, 11, 42, 216, 926, 4805, 21594, 113176, 523158, 2766030, 13043426, 69508528, 332880898, 1786840975, 8666578226, 46835595908, 229627064562, 1248785459646, 6180314464290, 33808696703208, 168713818115262, 927994263768204, 4665292098508258, 25791693351775736
OFFSET
0,2
CROSSREFS
Sequence in context: A089658 A219100 A140322 * A141190 A048500 A197189
KEYWORD
nonn
EXTENSIONS
More terms from Sean A. Irvine, Oct 26 2019
STATUS
approved