Odd numbers m whose abundance by absolute value is at most 10, that is, -10 <= sigma(m) - 2m <= 10.
A077374
Odd numbers m whose abundance by absolute value is at most 10, that is, -10 <= sigma(m) - 2m <= 10.
Terms
- a(0) =1a(1) =3a(2) =5a(3) =7a(4) =9a(5) =11a(6) =15a(7) =21a(8) =315a(9) =1155a(10) =8925a(11) =32445a(12) =442365a(13) =815634435
External references
- oeis: A077374