Sum T(n,k) of the k-th last entries in all blocks of all set partitions of [n]; triangle T(n,k), n>=1, 1<=k<=n, read by rows.
A286897
Sum T(n,k) of the k-th last entries in all blocks of all set partitions of [n]; triangle T(n,k), n>=1, 1<=k<=n, read by rows.
Terms
- a(0) =1a(1) =5a(2) =1a(3) =23a(4) =6a(5) =1a(6) =109a(7) =33a(8) =7a(9) =1a(10) =544a(11) =182a(12) =45a(13) =8a(14) =1a(15) =2876a(16) =1034a(17) =284a(18) =59a(19) =9a(20) =1a(21) =16113a(22) =6122a(23) =1815a(24) =420a(25) =75a(26) =10a(27) =1a(28) =95495a(29) =37927
External references
- oeis: A286897