Numbers k such that k^3 divides 19^(k^2) + 1.

Terms

a(0) =1a(1) =5a(2) =55a(3) =1265a(4) =11255a(5) =59455a(6) =123805a(7) =395755a(8) =635255a(9) =874115a(10) =1028555a(11) =1456015a(12) =2847515a(13) =3201715a(14) =3841805a(15) =4353305a(16) =6655055a(17) =6987805a(18) =13443155a(19) =16825765a(20) =23656765a(21) =36370015a(22) =41083405a(23) =66919765a(24) =68432705a(25) =100126015a(26) =123012395