Triangle T(n,k), read by rows, given by A000290 DELTA [1, 2, 6, 5, 11, 8, 16, 11, 21, 14, 26, 17, 31, 20, 36, ...] where DELTA is the operator defined in A084938.
A088969
Triangle T(n,k), read by rows, given by A000290 DELTA [1, 2, 6, 5, 11, 8, 16, 11, 21, 14, 26, 17, 31, 20, 36, ...] where DELTA is the operator defined in A084938.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =0a(4) =1a(5) =3a(6) =0a(7) =5a(8) =20a(9) =21a(10) =0a(11) =61a(12) =287a(13) =445a(14) =231a(15) =0a(16) =1385a(17) =7244a(18) =13688a(19) =11206a(20) =3453a(21) =0a(22) =50521a(23) =285295a(24) =612556a(25) =631862a(26) =320159a(27) =65271a(28) =0a(29) =2702765
External references
- oeis: A088969