A308781 Number of steps until the 'summarize the previous term' sequence enters a cycle.
10, 12, 11, 12, 8, 10, 10, 10, 10, 10, 9, 11, 10, 11, 7, 9, 9, 9, 9, 9, 6, 10, 0, 9, 6, 6, 6, 6, 6, 6, 8, 11, 9, 10, 6, 8, 8, 8, 8, 8, 9, 7, 6, 6, 7, 8, 9, 9, 9, 9, 10, 9, 6, 8, 8, 7, 9, 10, 10, 10, 12, 9, 6, 8, 9, 9, 7, 10, 12, 12, 13, 9, 6, 8, 9, 10, 10, 7, 12, 13, 14, 9, 6, 8, 9, 10, 12, 12, 7, 13, 14, 9, 6, 8, 9, 10, 12, 13, 13, 7, 6
Offset: 0
Examples
a(0) = 10, as shown by the 'summarize the previous term' sequence starting with 0: 0 -> 10 -> 1011 -> 1031 -> 102113 -> 10311213 -> 10411223 -> 1031221314 -> 1041222314 -> 1031321324 -> 1031223314 -> 1031223314 (see also A037220).
Comments