Irregular triangle of cycles of purely periodic unitary sigma aliquot sequences with their smallest member as starting number, read by rows.

A336216

Irregular triangle of cycles of purely periodic unitary sigma aliquot sequences with their smallest member as starting number, read by rows.

Terms

    a(0) =6a(1) =30a(2) =42a(3) =54a(4) =60a(5) =90a(6) =114a(7) =126a(8) =1140a(9) =1260a(10) =1482a(11) =1878a(12) =1890a(13) =2142a(14) =2178a(15) =2418a(16) =2958a(17) =3522a(18) =3534a(19) =4146a(20) =4158a(21) =3906a(22) =3774a(23) =4434a(24) =4446a(25) =3954a(26) =3966a(27) =3978a(28) =3582a(29) =18018

External references