Number T(n,k) of collections of nonempty multisets with a total of n objects of exactly k colors; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

A255903

Number T(n,k) of collections of nonempty multisets with a total of n objects of exactly k colors; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =0a(4) =2a(5) =2a(6) =0a(7) =3a(8) =8a(9) =5a(10) =0a(11) =5a(12) =23a(13) =33a(14) =15a(15) =0a(16) =7a(17) =56a(18) =141a(19) =144a(20) =52a(21) =0a(22) =11a(23) =127a(24) =492a(25) =848a(26) =675a(27) =203a(28) =0a(29) =15

External references