Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*4^j.

Terms

a(0) =1a(1) =5a(2) =4a(3) =25a(4) =40a(5) =16a(6) =125a(7) =300a(8) =240a(9) =64a(10) =625a(11) =2000a(12) =2400a(13) =1280a(14) =256a(15) =3125a(16) =12500a(17) =20000a(18) =16000a(19) =6400a(20) =1024a(21) =15625a(22) =75000a(23) =150000a(24) =160000a(25) =96000a(26) =30720a(27) =4096a(28) =78125a(29) =437500