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A105173
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Numbers n such that either n*(n+1)/4 + 1 or n*(n+1)/4 - 1 or both are primes.
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0
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3, 7, 8, 15, 16, 23, 24, 32, 39, 40, 47, 48, 55, 56, 63, 64, 71, 79, 80, 87, 95, 103, 104, 111, 112, 119, 120, 128, 135, 136, 143, 151, 152, 159, 167, 175, 176, 183, 199, 208, 216
(list; graph; refs; listen; history; internal format)
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