Triangular array read by rows: T(n,k) is the number of set partitions of {1,2,...,n} in which the shortest block has length k (1 <= k <= n).
A178979
Triangular array read by rows: T(n,k) is the number of set partitions of {1,2,...,n} in which the shortest block has length k (1 <= k <= n).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =4a(4) =0a(5) =1a(6) =11a(7) =3a(8) =0a(9) =1a(10) =41a(11) =10a(12) =0a(13) =0a(14) =1a(15) =162a(16) =30a(17) =10a(18) =0a(19) =0a(20) =1a(21) =715a(22) =126a(23) =35a(24) =0a(25) =0a(26) =0a(27) =1a(28) =3425a(29) =623
External references
- oeis: A178979