Composite numbers n such that sigma(n)+6 = sigma(n+6), where sigma=A000203.

A054903

Composite numbers n such that sigma(n)+6 = sigma(n+6), where sigma=A000203.

Terms

    a(0) =104a(1) =147a(2) =596a(3) =1415a(4) =4850a(5) =5337a(6) =370047a(7) =1630622a(8) =35020303a(9) =120221396a(10) =3954451796a(11) =742514284703

External references