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A026939
Self-convolution of array T given by A026300.
0
1, 2, 8, 38, 195, 1042, 5710, 31824, 179534, 1022108, 5860360, 33791804, 195753023, 1138357170, 6641444190, 38855909550, 227876590746, 1339240440244, 7885425300976, 46506012931244, 274684745368371, 1624564306735434, 9619687284309090, 57024174275993142, 338368271349427938
OFFSET
0,2
FORMULA
a(n) = Sum_{k=0..n} A026300(n, k) * A026300(n, n-k). - Sean A. Irvine, Oct 17 2019
CROSSREFS
Sequence in context: A059423 A112109 A345178 * A291088 A047098 A271934
KEYWORD
nonn
EXTENSIONS
More terms from Sean A. Irvine, Oct 17 2019
STATUS
approved