Binomial coefficients C(56,n).

Terms

a(0) =1a(1) =56a(2) =1540a(3) =27720a(4) =367290a(5) =3819816a(6) =32468436a(7) =231917400a(8) =1420494075a(9) =7575968400a(10) =35607051480a(11) =148902215280a(12) =558383307300