Numbers k such that sigma(k) = phi(k) + tau(k)^2 + pi(k).

Terms

a(0) =32a(1) =55a(2) =91a(3) =341a(4) =12869a(5) =12937a(6) =13073a(7) =5789473a(8) =5790053a(9) =36382877a(10) =69997229a(11) =159411799a(12) =386930381a(13) =891820247a(14) =2295668269a(15) =4712182133a(16) =5427983713a(17) =7623867697a(18) =8153633179