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A126440
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Triangular array read by rows: related to A053445 and A060351 with row sums A000142 (which counts permutations of n objects).
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0
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1, 0, 2, 0, 2, 4, 0, 3, 13, 8, 0, 4, 42, 58, 16, 0, 5, 118, 344, 221, 32
(list; table; graph; refs; listen; history; internal format)
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