Triangle read by rows of Legendre-Stirling numbers of the second kind.

Terms

a(0) =1a(1) =1a(2) =2a(3) =1a(4) =8a(5) =4a(6) =1a(7) =20a(8) =52a(9) =8a(10) =1a(11) =40a(12) =292a(13) =320a(14) =16a(15) =1a(16) =70a(17) =1092a(18) =3824a(19) =1936a(20) =32a(21) =1a(22) =112a(23) =3192a(24) =25664a(25) =47824a(26) =11648a(27) =64a(28) =1a(29) =168