Numbers k that divide the k-th Franel number.

Terms

a(0) =1a(1) =2a(2) =10a(3) =70a(4) =410a(5) =416a(6) =464a(7) =560a(8) =610a(9) =692a(10) =976a(11) =1840a(12) =2512a(13) =2815a(14) =3712a(15) =4187a(16) =5888a(17) =6026a(18) =7192a(19) =10556a(20) =12064a(21) =14560a(22) =18368a(23) =32704a(24) =33580a(25) =36424a(26) =40016a(27) =41944a(28) =45400a(29) =51940