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A078594
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Number of pairs (x,y) 1<=x<=y<=n such that 1/x+1/y+1/n > 1/2.
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0
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1, 3, 6, 10, 15, 20, 24, 26, 29, 30, 33, 34, 36, 37, 38, 40, 42, 43, 45, 46, 48, 50, 52, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132
(list; graph; refs; listen; history; internal format)
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