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A248640
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Least nonnegative sequence which does not contain a 5-term equidistant subsequence (a(n+k*d); k=0,1,2,3,4) in arithmetic progression.
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2
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0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0
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OFFSET
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0,24
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COMMENTS
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See A248625 for more information, links and examples.
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LINKS
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PROG
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(PARI) a=[]; for(n=1, 190, a=concat(a, 0); while(hasAP(a, 5), a[#a]++)); a \\ See A248625 for hasAP(). Use concat(a, 1) for the "positive integer" variant.
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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