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A072473
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a(n) = p(2n) - p(n), where p(k) is the k-th prime.
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4
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1, 4, 8, 12, 18, 24, 26, 34, 38, 42, 48, 52, 60, 64, 66, 78, 80, 90, 96, 102, 108, 114, 116, 134, 132, 138, 148, 156, 162, 168, 166, 180, 180, 198, 200, 208, 216, 220, 230, 236, 242, 252, 252, 264, 266, 280, 280, 280, 294, 312, 324, 330, 336, 342, 344, 350, 350
(list; graph; refs; listen; history; internal format)
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