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Search: id:A135699
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| A135699 |
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Palindromes with odd number of digits formed from the reflected decimal expansion of golden ratio phi. |
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+0
3
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| 1, 161, 16161, 1618161, 161808161, 16180308161, 1618033308161, 161803393308161, 16180339893308161, 1618033988893308161, 161803398878893308161, 16180339887478893308161
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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Phi = 1.61803398874989484820458683436... (See A001622).
The number of digits of a(n) is equal to 2n - 1.
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EXAMPLE
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n ............ a(n)
1 ............. 1
2 ............ 161
3 ........... 16161
4 .......... 1618161
5 ......... 161808161
6 ........ 16180308161
7 ....... 1618033308161
8 ...... 161803393308161
9 ..... 16180339893308161
10 ... 1618033988893308161
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CROSSREFS
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Cf. A001622, A002113.
Sequence in context: A157954 A159545 A157337 this_sequence A092312 A118470 A081724
Adjacent sequences: A135696 A135697 A135698 this_sequence A135700 A135701 A135702
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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
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