Number T(n,k) of partitions of [n] having k blocks containing their own index when blocks are ordered with decreasing largest elements; triangle T(n,k), n>=0, 0<=k<=ceiling(n/2), read by rows.
A350647
Number T(n,k) of partitions of [n] having k blocks containing their own index when blocks are ordered with decreasing largest elements; triangle T(n,k), n>=0, 0<=k<=ceiling(n/2), read by rows.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =1a(5) =1a(6) =3a(7) =1a(8) =6a(9) =7a(10) =2a(11) =16a(12) =25a(13) =10a(14) =1a(15) =73a(16) =91a(17) =35a(18) =4a(19) =298a(20) =390a(21) =163a(22) =25a(23) =1a(24) =1453a(25) =1797a(26) =755a(27) =128a(28) =7a(29) =7366
External references
- oeis: A350647