Triangle T(n,k), read by rows, given by [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, ...] DELTA [1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, ...] where DELTA is the operator defined in A084938.
A089949
Triangle T(n,k), read by rows, given by [0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, ...] DELTA [1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, ...] where DELTA is the operator defined in A084938.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =0a(4) =1a(5) =2a(6) =0a(7) =1a(8) =6a(9) =6a(10) =0a(11) =1a(12) =12a(13) =34a(14) =24a(15) =0a(16) =1a(17) =20a(18) =110a(19) =210a(20) =120a(21) =0a(22) =1a(23) =30a(24) =270a(25) =974a(26) =1452a(27) =720a(28) =0a(29) =1
External references
- oeis: A089949