Triangle read by rows: matrix cube of the Stirling-1 triangle A008275.

Terms

a(0) =1a(1) =-3a(2) =1a(3) =15a(4) =-9a(5) =1a(6) =-105a(7) =87a(8) =-18a(9) =1a(10) =947a(11) =-975a(12) =285a(13) =-30a(14) =1a(15) =-10472a(16) =12657a(17) =-4680a(18) =705a(19) =-45a(20) =1a(21) =137337a(22) =-188090a(23) =82887a(24) =-15960a(25) =1470a(26) =-63a(27) =1a(28) =-2085605a(29) =3159699