Smallest positive multiple of n whose base-5 representation contains only 0's and 1's.

Terms

a(0) =1a(1) =6a(2) =6a(3) =156a(4) =5a(5) =6a(6) =126a(7) =656a(8) =126a(9) =30a(10) =781a(11) =156a(12) =26a(13) =126a(14) =30a(15) =656a(16) =3281a(17) =126a(18) =3781a(19) =780a(20) =126a(21) =3256a(22) =3151a(23) =97656a(24) =25a(25) =26a(26) =756a(27) =756a(28) =15631a(29) =30