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A110300
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Not-really primes: numbers n such that n - 1, n and n + 1 all have only 1 or 2 prime factors.
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0
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3, 4, 5, 6, 10, 14, 22, 34, 38, 58, 86, 94, 122, 142, 158, 178, 202, 214, 218, 302, 382, 394, 446, 502, 542, 634, 698, 718, 842, 878, 922, 1042, 1138, 1202, 1262, 1318, 1346, 1382, 1402, 1438, 1622, 1642, 1762, 1822, 1838, 1894, 1942, 1982, 2018, 2102
(list; graph; refs; listen; history; internal format)
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