**a(m, n) is the number of coprime pairs (i, j) with 1 <= i <= m, 1 <= j <= n; table of a(m, n) read by antidiagonals.**

*1, 2, 2, 3, 3, 3, 4, 5, 5, 4, 5, 6, 7, 6, 5, 6, 8, 9, 9, 8, 6, 7, 9, 12, 11, 12, 9, 7, 8, 11, 13*

*2 seqfan posts*

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

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