Triangle read by rows: T(n,k) is the number of partitions of the set {1,2,...,n}, having exactly k blocks consisting of entries of the same parity (0<=k<=n).
A124424
Triangle read by rows: T(n,k) is the number of partitions of the set {1,2,...,n}, having exactly k blocks consisting of entries of the same parity (0<=k<=n).
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =0a(5) =1a(6) =1a(7) =2a(8) =1a(9) =1a(10) =3a(11) =4a(12) =5a(13) =2a(14) =1a(15) =7a(16) =14a(17) =16a(18) =10a(19) =4a(20) =1a(21) =25a(22) =48a(23) =61a(24) =42a(25) =20a(26) =6a(27) =1a(28) =79a(29) =194
External references
- oeis: A124424