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A075315
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Pair the natural numbers such that the n-th pair is (k, k+p(n)) where k is the smallest number not occurring earlier and p(n) is the n-th prime. (1, 3), (2, 5), (4, 9), (6, 13), (7, 18), (8, 21), (10, 27), (11, 30), (12, 35), (14, 43), ... This is the sequence of the sum of the members of every pair.
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3
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4, 7, 13, 19, 25, 29, 37, 41, 47, 57, 61, 69, 75, 81, 87, 97, 105, 109, 117, 123, 129, 137, 145, 153, 163, 169, 175, 181, 185, 191, 207, 213, 221, 227, 239, 245, 253, 261, 267, 275, 283, 289, 301, 305, 311, 317, 331, 345, 353, 357, 363, 371, 377, 389, 397, 405
(list; graph; refs; listen; history; internal format)
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