Number T(n,k) of colored compositions of n using all colors of a k-set such that all parts have different color patterns and the patterns for parts i have i distinct colors in increasing order; triangle T(n,k), k>=0, k<=n<=k*2^(k-1), read by columns.

A327584

Number T(n,k) of colored compositions of n using all colors of a k-set such that all parts have different color patterns and the patterns for parts i have i distinct colors in increasing order; triangle T(n,k), k>=0, k<=n<=k*2^(k-1), read by columns.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =4a(4) =6a(5) =13a(6) =48a(7) =150a(8) =300a(9) =666a(10) =936a(11) =1824a(12) =2520a(13) =2160a(14) =5040a(15) =75a(16) =536a(17) =2820a(18) =11144a(19) =41346a(20) =131304a(21) =420084a(22) =1191552a(23) =3427008a(24) =9207456a(25) =23466720a(26) =61522560a(27) =141553560a(28) =345346560a(29) =777152160

External references