The number k(GL(n,q)) of conjugacy classes in GL(n,q), q=4.

Terms

a(0) =1a(1) =3a(2) =15a(3) =60a(4) =252a(5) =1005a(6) =4080a(7) =16305a(8) =65460a(9) =261828a(10) =1048260a(11) =4192980a(12) =16775955a(13) =67103520a(14) =268430160a(15) =1073720415a(16) =4294945932a(17) =17179782540a(18) =68719391100a(19) =274877559420