Wolfram Demonstrations Project

For some

, find a list of

numbers

with the property that

is the number of times

occurs in the list for all

Reference

[1] T. Gardiner, "Self-Descriptive Lists: A Short Investigation," The Mathematical Gazette, 68(443), 1984 pp. 5–10.

Contributed by: Izidor Hafner

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Self-Descriptive Strings