Square array A(n,k), n >= 1, k >= 0, read by antidiagonals, where A(n,k) is Sum_{d|n} d^(k*d+1).

Terms

a(0) =1a(1) =1a(2) =3a(3) =1a(4) =9a(5) =4a(6) =1a(7) =33a(8) =82a(9) =7a(10) =1a(11) =129a(12) =2188a(13) =1033a(14) =6a(15) =1a(16) =513a(17) =59050a(18) =262177a(19) =15626a(20) =12a(21) =1a(22) =2049a(23) =1594324a(24) =67108993a(25) =48828126a(26) =280026a(27) =8a(28) =1a(29) =8193