**a(n+1)=a(n)-n^2 if positive and new, else a(n+1)=a(n)+n^2; a(0)=1.**

*1, 1, 2, 6, 15, 31, 56, 20, 69, 5, 86, 186, 65, 209, 40, 236, 11, 267, 556, 232, 593, 193*

*2 seqfan posts*

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

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