Number A(n,k) of partitions of the (n+k)-multiset {1,2,...,n,1,2,...,k}; square array A(n,k), n>=0, k>=0, read by antidiagonals.

A346500

Number A(n,k) of partitions of the (n+k)-multiset {1,2,...,n,1,2,...,k}; square array A(n,k), n>=0, k>=0, read by antidiagonals.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =2a(6) =5a(7) =4a(8) =4a(9) =5a(10) =15a(11) =11a(12) =9a(13) =11a(14) =15a(15) =52a(16) =36a(17) =26a(18) =26a(19) =36a(20) =52a(21) =203a(22) =135a(23) =92a(24) =66a(25) =92a(26) =135a(27) =203a(28) =877a(29) =566

External references