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A137847
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Smallest number missing in the EKG sequence (A064413) after n terms.
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1
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2, 3, 3, 3, 5, 5, 5, 5, 5, 7, 7, 7, 7, 11, 11, 11, 11, 11, 11, 13, 13, 13, 13, 13, 13, 13, 13, 17, 17, 17, 17, 17, 19, 19, 19, 19, 23, 23, 23, 23, 23, 23, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 31, 31, 31, 31, 37, 37, 37, 37, 37, 37, 41, 41, 41, 41, 41, 41, 41, 43
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OFFSET
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1,1
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COMMENTS
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Lengths of runs gives A064425 prefixed by a 2.
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LINKS
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EXAMPLE
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a(1)=2 because the least integer absent in EKG with 1 term, {1}, is 2;
a(2..4)=3 because the least integer absent in EKG with 4 terms, {1,2,4,6}, is 3;
a(5..9)=5 because the least integer absent in EKG with 9 terms, {1,2,4,6,3,9,12,8,10}, is 5;
a(10..13)=7 because the least integer absent in EKG with 15 terms, {1,2,4,6,3,9,12,8,10}, is 7.
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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