Numbers k such that 5*phi(k) = 4*sigma(k).

Terms

a(0) =323a(1) =377a(2) =22591a(3) =42619a(4) =49751a(5) =106711a(6) =119647a(7) =180947a(8) =2782057a(9) =2980823a(10) =2981233a(11) =3794737a(12) =5112427a(13) =5285743a(14) =5732179a(15) =5964229a(16) =6073267a(17) =6669797a(18) =6769927a(19) =7049407a(20) =8025547a(21) =8350633a(22) =8954023a(23) =9373213a(24) =10039471a(25) =10140517a(26) =10842901