Column 5 of triangle in A133721.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =1a(6) =1a(7) =1a(8) =1a(9) =1a(10) =22a(11) =13a(12) =7a(13) =3a(14) =1a(15) =226a(16) =81a(17) =25a(18) =6a(19) =1a(20) =1371a(21) =325a(22) =65a(23) =10a(24) =1a(25) =5901a(26) =995a(27) =140a(28) =15a(29) =1