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A161926
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Numbers occurring at least twice in A114381, in order of second appearance.
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3
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991, 104435, 712363, 1932085, 4816631, 2685019, 9180975, 13841797, 27084303, 10089313, 18865937, 72584313, 12235713, 29071365, 59499291, 27454813, 40349105, 18039791, 35811791, 26392813, 62173813, 79465965, 59293917
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OFFSET
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1,1
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COMMENTS
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Numbers that have three occurrences in A114381 are not known to date.
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LINKS
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Klaus Brockhaus, Table of n, a(n) for n=1..222.
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EXAMPLE
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A114381(11) = A114381(14) = 991; A114381(193) = A114381(348) = 104435; A114381(654) = A114381(2364) = 712363.
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PROG
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(PARI) /* gives terms and index of second occurrence */ {m=100000; S=[]; c=0; for(k=1, m, a=sum(j=prime(k), prime(k+1), prime(j)); S=setunion(S, Set(a)); d=#S; if(c==d, print(a, ", " , k), c=d))}
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CROSSREFS
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Cf. A114381, A161927 (index of second occurrence).
Sequence in context: A255098 A155509 A093177 * A172698 A109149 A237991
Adjacent sequences: A161923 A161924 A161925 * A161927 A161928 A161929
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KEYWORD
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nonn
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AUTHOR
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Klaus Brockhaus, Jul 01 2009
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STATUS
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approved
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