Regular triangle read by rows where T(n, k) is the number of set partitions of {1, ..., n} with no block containing k cyclically successive vertices, n >= 1, 2 <= k <= n + 1.

A323955

Regular triangle read by rows where T(n, k) is the number of set partitions of {1, ..., n} with no block containing k cyclically successive vertices, n >= 1, 2 <= k <= n + 1.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =1a(4) =4a(5) =5a(6) =4a(7) =10a(8) =14a(9) =15a(10) =11a(11) =36a(12) =46a(13) =51a(14) =52a(15) =41a(16) =145a(17) =184a(18) =196a(19) =202a(20) =203a(21) =162a(22) =631a(23) =806a(24) =855a(25) =869a(26) =876a(27) =877a(28) =715a(29) =3015

External references