a(n) is the least number such that sigma(a(n)) = sigma(R(a(n)))/n, where R(n) is the digit reverse of n and sigma(n) is the sum of the divisors of n.
A284498
a(n) is the least number such that sigma(a(n)) = sigma(R(a(n)))/n, where R(n) is the digit reverse of n and sigma(n) is the sum of the divisors of n.
Terms
- a(0) =1a(1) =16a(2) =15a(3) =17a(4) =2178a(5) =299a(6) =129a(7) =110959a(8) =116509a(9) =1001159
External references
- oeis: A284498