**Numbers which are both the sum of n+1 consecutive integers and the sum of the n immediately higher consecutive integers.**

*0, 3, 15, 42, 90, 165, 273, 420, 612, 855, 1155, 1518, 1950, 2457, 3045, 3720, 4488*

*3 seqfan posts*

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

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