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Search: id:A135698
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| A135698 |
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Palindromes with odd number of digits formed from the reflected decimal expansion of Pi. |
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+0
3
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| 3, 313, 31413, 3141413, 314151413, 31415951413, 3141592951413, 314159262951413, 31415926562951413, 3141592653562951413
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Pi = 3.14159265358979323846264338327... (see A000796).
The number of digits of a(n) is equal to 2n - 1.
The first five members of this sequence are in the example of A119351.
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EXAMPLE
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n ........... a(n)
1 ............ 3
2 ........... 313
3 .......... 31413
4 ......... 3141413
5 ........ 314151413
6 ....... 31415951413
7 ...... 3141592951413
8 ..... 314159262951413
9 .... 31415926562951413
10 .. 3141592653562951413
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CROSSREFS
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Cf. A000796, A002113, A119351.
Cf. A135697.
Adjacent sequences: A135695 A135696 A135697 this_sequence A135699 A135700 A135701
Sequence in context: A074327 A062333 A083974 this_sequence A088102 A039954 A134215
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KEYWORD
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base,nonn
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AUTHOR
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Omar E. Pol (info(AT)polprimos.com), Mar 01 2008, Mar 28 2008
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