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Search: id:A114309
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| A114309 |
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Self-describing sequence. See the sequence as a succession of digits: then a(n) is the position of the even digits of the sequence. |
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+0
1
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| 3, 5, 6, 7, 8, 20, 21, 31, 33, 35, 37, 39, 40, 51, 53, 55, 57, 58, 70, 72, 74, 76, 81, 91, 93, 95, 97, 98, 101
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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Even digits of the sequence are between brackets:
Sequence: 3,5,(6),7,(8),(2)(0),(2)1,31,33,35,37,39,(4)(0)...
Digit pos: 3rd 5 6 7 8th 20 21... = the sequence itself
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CROSSREFS
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Sequence in context: A159559 A047583 A010906 this_sequence A079581 A057716 A138591
Adjacent sequences: A114306 A114307 A114308 this_sequence A114310 A114311 A114312
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KEYWORD
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base,easy,more,nonn
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AUTHOR
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Eric Angelini (eric.angelini(AT)kntv.be), Feb 05 2006
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