Triangle read by rows: t(n,m)=(1 + n!)*Binomial[n, m]-n!/Binomial[n, m].

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =5a(5) =1a(6) =1a(7) =19a(8) =19a(9) =1a(10) =1a(11) =94a(12) =146a(13) =94a(14) =1a(15) =1a(16) =581a(17) =1198a(18) =1198a(19) =581a(20) =1a(21) =1a(22) =4206a(23) =10767a(24) =14384a(25) =10767a(26) =4206a(27) =1a(28) =1a(29) =34567