a(n) = self-convolution of row n of array T given by A026323.
A027308
a(n) = self-convolution of row n of array T given by A026323.
Terms
- a(0) =0a(1) =3a(2) =19a(3) =126a(4) =782a(5) =4720a(6) =28158a(7) =167076a(8) =988976a(9) =5848884a(10) =34587791a(11) =204607678a(12) =1211072430a(13) =7173288330a(14) =42519596826a(15) =252225457356
External references
- oeis: A027308