**1+A053735(n-1), where A053735 is the sum-of-digits function in base 3.**

*1, 2, 3, 2, 3, 4, 3, 4, 5, 2, 3, 4, 3, 4, 5, 4, 5, 6, 3, 4, 5, 4, 5, 6, 5, 6, 7, 2, 3, 4, 3, 4, 5, 4*

*3 seqfan posts*

Index of A-numbers in seqfan: by ascending order by month by frequency by keyword

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