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A152410
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Column 3 of triangle A152406; also, column 0 of matrix 4-th power of A152406.
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4
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1, 4, 28, 260, 2916, 37712, 547240, 8751688, 152309648, 2857598164, 57379111732, 1225920973324, 27737038620452, 661937827915872, 16605857832896944, 436636765049489648, 12002769920717089856, 344160801015503753892
(list; graph; refs; listen; history; internal format)
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