Numerator of Euler(n,6).

Terms

a(0) =1a(1) =11a(2) =30a(3) =649a(4) =870a(5) =9251a(6) =24390a(7) =1020833a(8) =662790a(9) =6840581a(10) =17550150a(11) =358472059a(12) =455781510a(13) =4620716111a(14) =11679693510a(15) =942661807681a(16) =296671809030