Triangle, read by rows, equal to P^5, where triangle P = A135880.

Terms

a(0) =1a(1) =5a(2) =1a(3) =30a(4) =10a(5) =1a(6) =220a(7) =95a(8) =15a(9) =1a(10) =1945a(11) =990a(12) =195a(13) =20a(14) =1a(15) =20340a(16) =11635a(17) =2625a(18) =330a(19) =25a(20) =1a(21) =247066a(22) =154450a(23) =38270a(24) =5440a(25) =500a(26) =30a(27) =1a(28) =3430936a(29) =2302142