Triangle T(n,k), read by rows, given by [0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, ...] DELTA [1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, ...] where DELTA is the operator defined in A084938.
A111146
Triangle T(n,k), read by rows, given by [0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, ...] DELTA [1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, ...] where DELTA is the operator defined in A084938.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =0a(4) =0a(5) =2a(6) =0a(7) =0a(8) =1a(9) =4a(10) =0a(11) =0a(12) =2a(13) =5a(14) =8a(15) =0a(16) =0a(17) =6a(18) =15a(19) =17a(20) =16a(21) =0a(22) =0a(23) =24a(24) =62a(25) =68a(26) =49a(27) =32a(28) =0a(29) =0
External references
- oeis: A111146