Triangle of D-analogs of Stirling numbers of first kind, rows reversed.

Terms

a(0) =1a(1) =1a(2) =0a(3) =1a(4) =-2a(5) =1a(6) =1a(7) =-6a(8) =11a(9) =-6a(10) =1a(11) =-12a(12) =50a(13) =-84a(14) =45a(15) =1a(16) =-20a(17) =150a(18) =-520a(19) =809a(20) =-420a(21) =1a(22) =-30a(23) =355a(24) =-2100a(25) =6439a(26) =-9390a(27) =4725a(28) =1a(29) =-42