Triangle read by rows: T(n, k) = (-1)^k*binomial(n, k) * A050446(n, n - k).

Terms

a(0) =1a(1) =2a(2) =-1a(3) =6a(4) =-6a(5) =1a(6) =30a(7) =-42a(8) =15a(9) =-1a(10) =190a(11) =-340a(12) =186a(13) =-32a(14) =1a(15) =1547a(16) =-3355a(17) =2460a(18) =-700a(19) =65a(20) =-1a(21) =15106a(22) =-38430a(23) =35295a(24) =-14140a(25) =2355a(26) =-126a(27) =1a(28) =173502a(29) =-506114