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Search: id:A076542
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OFFSET
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1,2
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COMMENT
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Presumably A068340(n)=0 only for n=10; so I looked for n's such that A068340(n)=+/-s; here s=1 (and n<=800000). For s=6, there's no solution at all! For s=8, n=34 (only 1 solution); for s=7, n={55, 56} (2 solutions); for s=9, n={5, 51, 52} (3 solutions) (for n up to 800000).
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CROSSREFS
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Cf. A068340.
Sequence in context: A078166 A101578 A041881 this_sequence A066226 A058439 A058463
Adjacent sequences: A076539 A076540 A076541 this_sequence A076543 A076544 A076545
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KEYWORD
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easy,nonn
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AUTHOR
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Zak Seidov (zakseidov(AT)yahoo.com; zakseidov(AT)yahoo.com), Oct 19 2002
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