a(n) is the number of subsets x of Z_n such that #x * #y = n and x + y = Z_n for some subset y of Z_n.
A374770
a(n) is the number of subsets x of Z_n such that #x * #y = n and x + y = Z_n for some subset y of Z_n.
Terms
- a(0) =1a(1) =3a(2) =4a(3) =11a(4) =6a(5) =24a(6) =8a(7) =59a(8) =40a(9) =68a(10) =12a(11) =284a(12) =14a(13) =192a(14) =384a(15) =795a(16) =18a(17) =1590a(18) =20a(19) =2876a(20) =2552a(21) =2192a(22) =24a(23) =17972a(24) =3156a(25) =8388a(26) =20560a(27) =35620a(28) =30a(29) =116474
External references
- oeis: A374770