Triangle, read by rows, defined by: T(n,k) = 1/((k+1)n-1) binomial((k+1)n-1,n) for n,k>0.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =1a(6) =5a(7) =7a(8) =3a(9) =1a(10) =14a(11) =30a(12) =15a(13) =4a(14) =1a(15) =42a(16) =143a(17) =91a(18) =26a(19) =5a(20) =1a(21) =132a(22) =728a(23) =612a(24) =204a(25) =40a(26) =6a(27) =1a(28) =429a(29) =3876