Triangle whose (i,j)-th entry is binomial(i,j)*7^(i-j)*4^j.

Terms

a(0) =1a(1) =7a(2) =4a(3) =49a(4) =56a(5) =16a(6) =343a(7) =588a(8) =336a(9) =64a(10) =2401a(11) =5488a(12) =4704a(13) =1792a(14) =256a(15) =16807a(16) =48020a(17) =54880a(18) =31360a(19) =8960a(20) =1024a(21) =117649a(22) =403368a(23) =576240a(24) =439040a(25) =188160a(26) =43008a(27) =4096a(28) =823543a(29) =3294172