Numbers m such that sigma(m) is a Lucas number (A000032), where sigma(m) is the sum of divisors of m (A000203).
A329660
Numbers m such that sigma(m) is a Lucas number (A000032), where sigma(m) is the sum of divisors of m (A000203).
Terms
- a(0) =1a(1) =2a(2) =3a(3) =4a(4) =10a(5) =17a(6) =688a(7) =1075a(8) =103681a(9) =7860997a(10) =10749957121
External references
- oeis: A329660