Number of distinct infinite sets of primes congruent to a subset of 1..n mod n.

Terms

a(0) =1a(1) =2a(2) =6a(3) =6a(4) =30a(5) =12a(6) =126a(7) =30a(8) =126a(9) =60a(10) =2046a(11) =60a(12) =8190a(13) =252a(14) =1020a(15) =510a(16) =131070a(17) =252a(18) =524286a(19) =1020a(20) =16380a(21) =4092a(22) =8388606a(23) =1020a(24) =2097150a(25) =16380a(26) =524286a(27) =16380a(28) =536870910a(29) =2040