Minimized zeroless factorials.

Terms

a(0) =1a(1) =1a(2) =2a(3) =6a(4) =24a(5) =12a(6) =72a(7) =54a(8) =432a(9) =3888a(10) =3888a(11) =42768a(12) =47916a(13) =62298a(14) =872172a(15) =13968a(16) =221688a(17) =57996a(18) =143928a(19) =134712a(20) =269154a(21) =563994a(22) =1247868a(23) =286344a(24) =877356a(25) =171864a(26) =513324a(27) =1252728a(28) =3414474a(29) =914616