Triangle read by rows. A generalization of unsigned Lah numbers, called L[4,3].

Terms

a(0) =1a(1) =6a(2) =1a(3) =60a(4) =20a(5) =1a(6) =840a(7) =420a(8) =42a(9) =1a(10) =15120a(11) =10080a(12) =1512a(13) =72a(14) =1a(15) =332640a(16) =277200a(17) =55440a(18) =3960a(19) =110a(20) =1a(21) =8648640a(22) =8648640a(23) =2162160a(24) =205920a(25) =8580a(26) =156a(27) =1a(28) =259459200a(29) =302702400