Numbers k that divide s(k), where s(1)=1, s(j)=6*s(j-1)+j.

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =6a(5) =10a(6) =14a(7) =15a(8) =25a(9) =30a(10) =42a(11) =50a(12) =70a(13) =75a(14) =98a(15) =110a(16) =125a(17) =129a(18) =150a(19) =186a(20) =210a(21) =250a(22) =258a(23) =294a(24) =330a(25) =350a(26) =375a(27) =406a(28) =490a(29) =550