Square array, read by antidiagonals, where row n+1 is generated from row n by first removing terms at positions [(m+3)^2/4 - 2] for m>=0 and then taking partial sums, starting with all 1's in row 0.

A135878

Square array, read by antidiagonals, where row n+1 is generated from row n by first removing terms at positions [(m+3)^2/4 - 2] for m>=0 and then taking partial sums, starting with all 1's in row 0.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =1a(6) =6a(7) =6a(8) =3a(9) =1a(10) =25a(11) =25a(12) =12a(13) =4a(14) =1a(15) =138a(16) =138a(17) =63a(18) =19a(19) =5a(20) =1a(21) =970a(22) =970a(23) =421a(24) =113a(25) =28a(26) =6a(27) =1a(28) =8390a(29) =8390

External references