Triangle T(n,k), 0<=k<=n, read by rows, given by [0, 2, 1, 3, 2, 4, 3, 5, 4, 6, 5, 7, 6, ...] DELTA [1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, ...] where DELTA is the operator defined in A084938.
A111184
Triangle T(n,k), 0<=k<=n, read by rows, given by [0, 2, 1, 3, 2, 4, 3, 5, 4, 6, 5, 7, 6, ...] DELTA [1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, ...] where DELTA is the operator defined in A084938.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =0a(4) =2a(5) =1a(6) =0a(7) =6a(8) =6a(9) =1a(10) =0a(11) =24a(12) =34a(13) =12a(14) =1a(15) =0a(16) =120a(17) =210a(18) =110a(19) =20a(20) =1a(21) =0a(22) =720a(23) =1452a(24) =974a(25) =270a(26) =30a(27) =1a(28) =0a(29) =5040
External references
- oeis: A111184