Triangle read by rows, (2, 3)-Lah numbers.

Terms

a(0) =1a(1) =36a(2) =1a(3) =1764a(4) =100a(5) =1a(6) =112896a(7) =9864a(8) =200a(9) =1a(10) =9144576a(11) =1099296a(12) =34064a(13) =344a(14) =1a(15) =914457600a(16) =142159392a(17) =6004512a(18) =92200a(19) =540a(20) =1a(21) =110649369600a(22) =21385410048a(23) =1156921920a(24) =24075712a(25) =213700a(26) =796a(27) =1a(30) =248142106368a(31) =6573957120