Triangle of B-analogs of Stirling numbers of the second kind.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =1a(6) =1a(7) =13a(8) =9a(9) =1a(10) =1a(11) =40a(12) =58a(13) =16a(14) =1a(15) =1a(16) =121a(17) =330a(18) =170a(19) =25a(20) =1a(21) =1a(22) =364a(23) =1771a(24) =1520a(25) =395a(26) =36a(27) =1a(28) =1a(29) =1093