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A083786
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Composite numbers mod 10.
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1
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4, 6, 8, 9, 0, 2, 4, 5, 6, 8, 0, 1, 2, 4, 5, 6, 7, 8, 0, 2, 3, 4, 5, 6, 8, 9, 0, 2, 4, 5, 6, 8, 9, 0, 1, 2, 4, 5, 6, 7, 8, 0, 2, 3, 4, 5, 6, 8, 9, 0, 2, 4, 5, 6, 7, 8, 0, 1, 2, 4, 5, 6, 7, 8, 0, 1, 2, 3, 4, 5, 6, 8, 9, 0, 2, 4, 5, 6, 8, 0, 1, 2, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 8, 9, 0, 2, 3, 4, 5, 6, 8, 0
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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FORMULA
| a(n)=A002808(n) mod 10. - Ray Chandler (rayjchandler(AT)sbcglobal.net), Sep 04 2003
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MATHEMATICA
| Mod[Rest@ Select[Range@140, !PrimeQ@# &], 10] (from Robert G. Wilson v (rgwv(AT)rgwv.com), Mar 17 2006)
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CROSSREFS
| Cf. A002808.
Sequence in context: A023991 A183005 A103189 * A199976 A165957 A110750
Adjacent sequences: A083783 A083784 A083785 * A083787 A083788 A083789
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KEYWORD
| nonn,easy
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AUTHOR
| Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Aug 21 2003
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EXTENSIONS
| More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Sep 04 2003
Entries checked by Robert G. Wilson v, Mar 17 2006
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