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A093933
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a(1) = 3; for n >= 1, a(n+1) is the least odd prime not already used such that abs(a(n+1)-a(n)) is a multiple of prime(n).
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1
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3, 5, 11, 31, 17, 61, 113, 79, 41, 179, 353, 43, 191, 109, 23, 211, 317, 199, 443, 577, 151, 881, 1039, 541, 7, 977, 1381, 557, 1627, 101, 1231, 1993, 421, 2339, 1783, 293, 3011, 499, 173, 3847, 733, 1091, 367, 2659, 2273, 1879, 1481, 3169, 47, 1409, 1867
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OFFSET
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1,1
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COMMENTS
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a(911) = 7109 = prime(911), so the sequence ends here. The smallest primes not included are 2, 13, 19, 29 and 37. - David Wasserman, Mar 09 2007
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LINKS
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EXAMPLE
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a(5) = 17 hence a(6) = 61, since (61-17) = 44 == 0 (mod (prime(5))), prime(5) = 11. 17 + 22 = 39 is not a prime.
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CROSSREFS
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KEYWORD
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nonn,fini,full
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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