Numerator of Integrate_{x=0..n} binomial (x, n) dx.

Terms

a(0) =0a(1) =1a(2) =1a(3) =3a(4) =14a(5) =95a(6) =41a(7) =5257a(8) =3956a(9) =25713a(10) =80335a(11) =4777223a(12) =1364651a(13) =106364763817a(14) =631693279a(15) =25221445a(16) =120348894184a(18) =611197056507