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A114316
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Self-describing sequence. See the sequence as a succession of digits: then a(n) is the position of a nonprime digit in the sequence.
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0
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1, 3, 4, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 19, 20, 21, 22, 23, 25, 27, 52, 53, 55, 57, 72, 73, 75, 77, 80, 202, 422
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| "Nonprime" digits are : 0, 1, 4, 6, 8 and 9.
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EXAMPLE
| Nonprime digits are between brackets:
Sequence: (1),3,(4),(6),7,(8),(9),(1)(0),(1)(1),(1)2,(1)4, ...
Digit pos: first third 4th 6th 7th 8th 9th 10th 11th 12th 14th ... = sequence itself.
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CROSSREFS
| Sequence in context: A092460 A092459 A039232 * A039176 A066533 A039130
Adjacent sequences: A114313 A114314 A114315 * A114317 A114318 A114319
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KEYWORD
| base,easy,more,nonn
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AUTHOR
| Eric Angelini (eric.angelini(AT)kntv.be), Feb 05 2006
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