Numerator of Euler(n, 1/5).

Terms

a(0) =1a(1) =-3a(2) =-4a(3) =99a(4) =116a(5) =-2523a(6) =-8764a(7) =1074243a(8) =1242356a(9) =-48982293a(10) =-283202524a(11) =27296351769a(12) =94690800596