Numerator of Euler(n,4).

Terms

a(0) =1a(1) =7a(2) =12a(3) =161a(4) =132a(5) =847a(6) =1332a(7) =32977a(8) =12612a(9) =76657a(10) =116052a(11) =1401491a(12) =1054692a(13) =6339067a(14) =9533172a(15) =459046049a(16) =85962372a(17) =512834077a(18) =774316692a(19) =9515828021a(20) =6971471652a(21) =37110907687a(22) =62753730612a(24) =564825518532