Numbers k such that sigma(k) == 0 (mod k+2).

A067702

Numbers k such that sigma(k) == 0 (mod k+2).

Terms

    a(0) =12a(1) =70a(2) =88a(3) =180a(4) =1888a(5) =4030a(6) =5830a(7) =32128a(8) =521728a(9) =1848964a(10) =8378368a(11) =34359083008a(12) =66072609790a(13) =549753192448

External references