Numbers k that divide s(k), where s(1)=1, s(j)=19*s(j-1)+j.

Terms

a(0) =1a(1) =3a(2) =9a(3) =19a(4) =27a(5) =57a(6) =81a(7) =171a(8) =243a(9) =381a(10) =513a(11) =729a(12) =1143a(13) =1539a(14) =2187a(15) =3429a(16) =4617a(17) =4707a(18) =6561a(19) =7239a(20) =10287a(21) =13053a(22) =13149a(23) =13851a(24) =14121a(25) =19683a(26) =21717a(27) =30861a(28) =39159a(29) =39447