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A137847 Smallest number missing in the EKG sequence (A064413) after n terms. 1
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; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Lengths of runs gives A064425 prefixed by a 2.
LINKS
EXAMPLE
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.
CROSSREFS
Sequence in context: A353710 A284397 A284374 * A295820 A164023 A097224
KEYWORD
nonn
AUTHOR
Zak Seidov, May 12 2008
EXTENSIONS
Entries checked by Jacques Tramu and Vladeta Jovovic.
STATUS
approved

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Last modified May 23 11:42 EDT 2024. Contains 372760 sequences. (Running on oeis4.)