Number of iterations of A174221 (the PrimeLatz map) required to enter a loop, for initial value n, or -1 if this never happens.
A293980
Number of iterations of A174221 (the PrimeLatz map) required to enter a loop, for initial value n, or -1 if this never happens.
Terms
- a(0) =0a(1) =1a(2) =2a(3) =1a(4) =3a(5) =1a(6) =2a(7) =6a(8) =4a(9) =0a(10) =2a(11) =0a(12) =3a(13) =0a(14) =7a(15) =0a(16) =5a(17) =0a(18) =0a(19) =14a(20) =3a(21) =0a(22) =0a(23) =2a(24) =4a(25) =0a(26) =0a(27) =21a(28) =8a(29) =29
External references
- oeis: A293980