Smallest number that takes n steps to reach a cycle under iteration of sum-of-squares-of-digits map.
A176762
Smallest number that takes n steps to reach a cycle under iteration of sum-of-squares-of-digits map.
Terms
- a(0) =1a(1) =10a(2) =13a(3) =23a(4) =19a(5) =7a(6) =356a(7) =4a(8) =2a(9) =11a(10) =15a(11) =5a(12) =3a(13) =14a(14) =45a(15) =36a(16) =6a(17) =112a(18) =269a(19) =15999
External references
- oeis: A176762