Triangle read by rows: the Bell transform of the triple factorial numbers A008544 without column 0.

Terms

a(0) =1a(1) =2a(2) =1a(3) =10a(4) =6a(5) =1a(6) =80a(7) =52a(8) =12a(9) =1a(10) =880a(11) =600a(12) =160a(13) =20a(14) =1a(15) =12320a(16) =8680a(17) =2520a(18) =380a(19) =30a(20) =1a(21) =209440a(22) =151200a(23) =46480a(24) =7840a(25) =770a(26) =42a(27) =1a(28) =4188800a(29) =3082240