Triangle of D-analogs of Stirling numbers of the 2nd kind.

Terms

a(0) =1a(1) =0a(2) =1a(3) =1a(4) =2a(5) =1a(6) =1a(7) =7a(8) =6a(9) =1a(10) =1a(11) =24a(12) =34a(13) =12a(14) =1a(15) =1a(16) =81a(17) =190a(18) =110a(19) =20a(20) =1a(21) =1a(22) =268a(23) =1051a(24) =920a(25) =275a(26) =30a(27) =1a(28) =1a(29) =869