Triangle T(n,k), read by rows, given by (2, 1/2, 1/2, 0, 0, 0, 0, 0, 0, 0, ...) DELTA (2, -1/2, -1/2, 0, 0, 0, 0, 0, 0, 0, ...) where DELTA is the operator defined in A084938.

A202396

Triangle T(n,k), read by rows, given by (2, 1/2, 1/2, 0, 0, 0, 0, 0, 0, 0, ...) DELTA (2, -1/2, -1/2, 0, 0, 0, 0, 0, 0, 0, ...) where DELTA is the operator defined in A084938.

Terms

    a(0) =1a(1) =2a(2) =2a(3) =5a(4) =8a(5) =3a(6) =13a(7) =27a(8) =19a(9) =5a(10) =34a(11) =86a(12) =86a(13) =42a(14) =8a(15) =89a(16) =265a(17) =338a(18) =234a(19) =85a(20) =13a(21) =233a(22) =798a(23) =1227a(24) =1084a(25) =567a(26) =166a(27) =21a(28) =610a(29) =2362

External references