Generalized Poly-Bernoulli numbers.

Terms

a(0) =0a(1) =1a(2) =8a(3) =50a(4) =286a(5) =1566a(6) =8358a(7) =43870a(8) =227606a(9) =1170926a(10) =5985958a(11) =30454590a(12) =154371126a(13) =780246286a(14) =3934789958a(15) =19808175710a(16) =99577765846a(17) =500036345646