Triangle read by rows: T(n,m) (n >= 1, 1 <= m <= n) = number of set partitions of [n], avoiding 12343, with m blocks.
A250118
Triangle read by rows: T(n,m) (n >= 1, 1 <= m <= n) = number of set partitions of [n], avoiding 12343, with m blocks.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =1a(6) =1a(7) =7a(8) =6a(9) =1a(10) =1a(11) =15a(12) =25a(13) =9a(14) =1a(15) =1a(16) =31a(17) =90a(18) =52a(19) =12a(20) =1a(21) =1a(22) =63a(23) =301a(24) =246a(25) =88a(26) =15a(27) =1a(28) =1a(29) =127
External references
- oeis: A250118