Smallest unhappy number that takes n steps to reach any of the unhappy cycle (4, 16, 37, 58, 89, 145, 42, 20) under iteration of sum of squares of digits map.
A094406
Smallest unhappy number that takes n steps to reach any of the unhappy cycle (4, 16, 37, 58, 89, 145, 42, 20) under iteration of sum of squares of digits map.
Terms
- a(0) =4a(1) =2a(2) =11a(3) =15a(4) =5a(5) =3a(6) =14a(7) =45a(8) =36a(9) =6a(10) =112a(11) =269a(12) =15999
External references
- oeis: A094406