Exponential Riordan array (1,4*x+6*x^2+4*x^3+x^4).

Terms

a(0) =4a(1) =12a(2) =16a(3) =24a(4) =144a(5) =64a(6) =24a(7) =816a(8) =1152a(9) =256a(10) =0a(11) =3360a(12) =12480a(13) =7680a(14) =1024a(15) =0a(16) =10080a(17) =100800a(18) =134400a(19) =46080a(20) =4096a(21) =0a(22) =20160a(23) =645120a(24) =1747200a(25) =1182720a(26) =258048a(27) =16384a(28) =0a(29) =20160