Triangle whose (i,j)-th entry is binomial(i,j)*7^(i-j)*5^j.

Terms

a(0) =1a(1) =7a(2) =5a(3) =49a(4) =70a(5) =25a(6) =343a(7) =735a(8) =525a(9) =125a(10) =2401a(11) =6860a(12) =7350a(13) =3500a(14) =625a(15) =16807a(16) =60025a(17) =85750a(18) =61250a(19) =21875a(20) =3125a(21) =117649a(22) =504210a(23) =900375a(24) =857500a(25) =459375a(26) =131250a(27) =15625a(28) =823543a(29) =4117715