Solution to: Strange Sequence
Here, again, the system behind the sequence is such that each number (except the first) "describes" the previous number. However, now the total number of occurrences of each digit is counted, with the digits being viewed from high to low. For example, 1231 means one "2" and three times a "1", while 131221 means one "3", one "2", and two times a "1". The number that follows 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 etcetera
