Irregular table read by rows; the n-th row contains in ascending order the integers m > 1 such that sigma(m) = tau(m)^n; the first row contains 1.

A349838

Irregular table read by rows; the n-th row contains in ascending order the integers m > 1 such that sigma(m) = tau(m)^n; the first row contains 1.

Terms

    a(0) =1a(1) =3a(2) =7a(3) =217a(4) =2667a(5) =31a(6) =889a(7) =27559a(8) =3937a(9) =172011a(10) =677207307a(11) =127a(12) =1777447a(13) =225735769a(14) =57337a(15) =11010027a(16) =12189603a(17) =3612185689a(18) =698915267211a(19) =253921a(20) =113770279a(21) =116522119a(23) =917497a(24) =1040257a(25) =931892355289a(26) =954432676729

External references