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Search: id:A114315
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| A114315 |
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Self-describing sequence. See the sequence as a succession of digits: then a(n) is the position of a prime digit in the sequence. |
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+0
1
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| 4, 6, 8, 20, 21, 24, 40, 41, 44, 46, 48, 52, 60, 70, 80, 81, 84, 86, 88
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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"Prime" digits are 2, 3, 5 and 7.
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EXAMPLE
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Prime digits are between brackets:
Sequence: 4,6,8,(2)0,(2)1,(2)4,40,41,44,46,48,(5)(2),60,(7)0...
Digit pos: 4th 6th 8th 20 21st 24th ... = the sequence itself.
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CROSSREFS
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Sequence in context: A022599 A112160 A132040 this_sequence A058238 A073437 A019196
Adjacent sequences: A114312 A114313 A114314 this_sequence A114316 A114317 A114318
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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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