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A135697
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Palindromes formed from the reflected decimal expansion of Pi.
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4
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3, 33, 313, 3113, 31413, 314413, 3141413, 31411413, 314151413, 3141551413, 31415951413, 314159951413, 3141592951413, 31415922951413, 314159262951413, 3141592662951413, 31415926562951413, 314159265562951413
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Pi = 3.14159265358979323846264338327... (see A000796).
The number of digits of a(n) is equal to n.
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EXAMPLE
| n ... Successive digits of a(n)
1 ............ ( 3 )
2 ........... ( 3 3 )
3 .......... ( 3 1 3 )
4 ......... ( 3 1 1 3 )
5 ........ ( 3 1 4 1 3 )
6 ....... ( 3 1 4 4 1 3 )
7 ...... ( 3 1 4 1 4 1 3 )
8 ..... ( 3 1 4 1 1 4 1 3 )
9 .... ( 3 1 4 1 5 1 4 1 3 )
10 .. ( 3 1 4 1 5 5 1 4 1 3 )
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CROSSREFS
| Cf. A000796, A002113.
Cf. A138070, A138071.
Sequence in context: A043038 A107127 A207323 * A097486 A121515 A002277
Adjacent sequences: A135694 A135695 A135696 * A135698 A135699 A135700
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KEYWORD
| base,nonn,tabl
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AUTHOR
| Omar E. Pol (info(AT)polprimos.com), Mar 01 2008, Mar 28 2008
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