**Number of ways of writing n as the sum of 2 triangular numbers.**

*1, 2, 1, 2, 2, 0, 3, 2, 0, 2, 2, 2, 1, 2, 0, 2, 4, 0, 2, 0, 1, 4, 2, 0, 2, 2, 0, 2, 2, 2, 1, 4, 0, 0*

*3 seqfan posts*

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

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