Numerator of Bernoulli(n, -4/7).

Terms

a(0) =1a(1) =-15a(2) =313a(3) =-330a(4) =55679a(5) =-9130a(6) =243319a(7) =-191510a(8) =32684159a(9) =-4958514a(10) =-59283835a(11) =32834450a(13) =-23531909258