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To make this a permutation of nonnegative integers, we subtract one from each run count except for the most significant run, e.g. a(12) = 10, as 12-1 = 11 = 1011 and 10 = 5^1 * 3^(1-1) * 2^(2-1).
Table of n, a(n) for n=1..66.
Index entries for sequences that are permutations of the natural numbers
Inverse of A075160. a(n) = A075157(n-1)+1.
Sequence in context: A230764 A225040 A118315 * A191545 A095424 A064275
Adjacent sequences: A075156 A075157 A075158 * A075160 A075161 A075162
Antti Karttunen, Sep 13 2002