Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*9^j.

Terms

a(0) =1a(1) =5a(2) =9a(3) =25a(4) =90a(5) =81a(6) =125a(7) =675a(8) =1215a(9) =729a(10) =625a(11) =4500a(12) =12150a(13) =14580a(14) =6561a(15) =3125a(16) =28125a(17) =101250a(18) =182250a(19) =164025a(20) =59049a(21) =15625a(22) =168750a(23) =759375a(24) =1822500a(25) =2460375a(26) =1771470a(27) =531441a(28) =78125a(29) =984375