Solution to: Strange Sequence (Question 2)

Here too, each number, except the first, describes the preceding number. However, this time, the total number of occurrences of each digit is counted. The digits are considered from highest to lowest.

For example, 1231 means: one 2 and three times a 1.
131221 means: one 3, one 2, and two times a 1.

The number after 131221 is therefore 132231: one 3, two times a 2, and three times a 1. The complete sequence is as follows:

1 11 21 1211 1231 131221 132231 232221 134211 14131231 14231241 24132231 14233221 14233221 ...

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