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A129124
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(c,n) is the n-th number for which the Esucarys sequence starting from it reaches 238 and from there runs in a 18 steps loop.
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0
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238, 257, 277, 337, 525, 699, 911, 1135, 1147, 1257, 1349, 1466, 1504, 1544, 1664, 1992, 2024
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OFFSET
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1,1
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LINKS
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EXAMPLE
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For c<257 except 238 itself, sequences E(c) never reaches 238
S(257) = 772 then E(257) =277
S(277) = 832 then E(277)= 238 then (c,1) = 238 and (c,2)=257
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CROSSREFS
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KEYWORD
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easy,nonn,uned
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AUTHOR
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Philippe LALLOUET (philip.lallouet(AT)wanadoo.fr), May 25 2007
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STATUS
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approved
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