Triangle, read by rows, where the n-th row is the first n terms of the n-th self-convolution of the sequence formed by flattening this triangle.
A086606
Triangle, read by rows, where the n-th row is the first n terms of the n-th self-convolution of the sequence formed by flattening this triangle.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =3a(5) =9a(6) =1a(7) =4a(8) =14a(9) =32a(10) =1a(11) =5a(12) =20a(13) =55a(14) =140a(15) =1a(16) =6a(17) =27a(18) =86a(19) =243a(20) =630a(21) =1a(22) =7a(23) =35a(24) =126a(25) =392a(26) =1099a(27) =2870a(28) =1a(29) =8
External references
- oeis: A086606