Matrix cube of triangle A107671.

Terms

a(0) =1a(1) =56a(2) =8a(3) =7965a(4) =513a(5) =27a(6) =2128064a(7) =81856a(8) =2368a(9) =64a(10) =914929500a(11) =23846125a(12) =469625a(13) =7625a(14) =125a(15) =576689214816a(16) =10943504136a(17) =160767720a(18) =1898856a(19) =19656a(20) =216a(23) =83548607478a(24) =776598305a(25) =6081733a(26) =43561a(27) =343