Triangle whose (i,j)-th entry is binomial(i,j)*4^(i-j)*9^j.

Terms

a(0) =1a(1) =4a(2) =9a(3) =16a(4) =72a(5) =81a(6) =64a(7) =432a(8) =972a(9) =729a(10) =256a(11) =2304a(12) =7776a(13) =11664a(14) =6561a(15) =1024a(16) =11520a(17) =51840a(18) =116640a(19) =131220a(20) =59049a(21) =4096a(22) =55296a(23) =311040a(24) =933120a(25) =1574640a(26) =1417176a(27) =531441a(28) =16384a(29) =258048