Number of 6-ary sequences with primitive period n.

Terms

a(0) =1a(1) =6a(2) =30a(3) =210a(4) =1260a(5) =7770a(6) =46410a(7) =279930a(8) =1678320a(9) =10077480a(10) =60458370a(11) =362797050a(12) =2176734420a(13) =13060694010a(14) =78363884130a(15) =470184976590