Let sigma*_m (n) be result of applying sum of anti-divisors m times to n; call n (m,k)-anti-perfect if sigma*_m (n) = k*n; sequence gives the (2,k)-anti-perfect numbers.
A229860
Let sigma*_m (n) be result of applying sum of anti-divisors m times to n; call n (m,k)-anti-perfect if sigma*_m (n) = k*n; sequence gives the (2,k)-anti-perfect numbers.
Terms
- a(0) =3a(1) =5a(2) =7a(3) =8a(4) =14a(5) =16a(6) =32a(7) =41a(8) =56a(9) =92a(10) =98a(11) =114a(12) =167a(13) =507a(14) =543a(15) =946a(16) =2524a(17) =3433a(18) =5186a(19) =5566a(20) =6596a(21) =6707a(22) =6874a(23) =8104a(24) =9615a(25) =15690a(26) =17386a(27) =27024a(28) =84026a(29) =87667
External references
- oeis: A229860