Numbers k such that the largest unitary divisor of sigma(k) that is coprime with A003961(k) is also a unitary divisor of k.

A351551

Numbers k such that the largest unitary divisor of sigma(k) that is coprime with A003961(k) is also a unitary divisor of k.

Terms

    a(0) =1a(1) =2a(2) =10a(3) =34a(4) =106a(5) =120a(6) =216a(7) =260a(8) =340a(9) =408a(10) =440a(11) =580a(12) =672a(13) =696a(14) =820a(15) =1060a(16) =1272a(17) =1666a(18) =1780a(19) =1940a(20) =2136a(21) =2340a(22) =2464a(23) =3320a(24) =3576a(25) =3960a(26) =4280a(27) =4536a(28) =5280a(29) =5380

External references