**G.f.: A(x) = exp( Sum_{n>=1} 3^(n^2) * x^n/n ), a power series in x with integer coefficients.**

*1, 3, 45, 6687, 10782369, 169490304819, 25016281429306077*

*3 seqfan posts*

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

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