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Search: id:A137847
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| A137847 |
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Smallest number missing in the EKG sequence (A064413) after n terms. |
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+0
2
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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
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Lengths of runs gives A064425 prefixed by a 2.
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LINKS
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Index entries for sequences related to EKG sequence
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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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MAPLE
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Entries checked by Jacques Tramu (jacques.tramu(AT)echolalie.com) and Vladeta Jovovic (vladeta(AT)eunet.yu).
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CROSSREFS
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Cf. A064413, A064425.
Sequence in context: A111912 A096288 A136348 this_sequence A097224 A087418 A087731
Adjacent sequences: A137844 A137845 A137846 this_sequence A137848 A137849 A137850
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KEYWORD
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nonn
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AUTHOR
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Zak Seidov (zakseidov(AT)yahoo.com), May 12 2008
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