Numbers n such that sigma(n) - sigma(reverse(n)) = phi(n).

A071847

Numbers n such that sigma(n) - sigma(reverse(n)) = phi(n).

Terms

    a(0) =1302a(1) =6364a(2) =13902a(3) =30944a(4) =35404a(5) =57356a(6) =88781a(7) =132432a(8) =141372a(9) =183792a(10) =284242a(11) =555093a(12) =806403a(13) =1967262a(14) =5010576a(15) =5568948a(16) =6298446a(17) =7306241a(18) =7496203a(19) =7944911a(20) =8078106

External references