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A135699 Palindromes with odd number of digits formed from the reflected decimal expansion of golden ratio phi. 2
1, 161, 16161, 1618161, 161808161, 16180308161, 1618033308161, 161803393308161, 16180339893308161, 1618033988893308161, 161803398878893308161, 16180339887478893308161 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

Phi = 1.61803398874989484820458683436... (see A001622).

The number of digits of a(n) is equal to 2n - 1.

EXAMPLE

n ............ a(n)

1 ............. 1

2 ............ 161

3 ........... 16161

4 .......... 1618161

5 ......... 161808161

6 ........ 16180308161

7 ....... 1618033308161

8 ...... 161803393308161

9 ..... 16180339893308161

10 ... 1618033988893308161

CROSSREFS

Cf. A001622, A002113.

Sequence in context: A196635 A196640 A197089 * A092312 A207232 A207225

Adjacent sequences:  A135696 A135697 A135698 * A135700 A135701 A135702

KEYWORD

base,nonn

AUTHOR

Omar E. Pol (info(AT)polprimos.com), Mar 01 2008

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Last modified February 17 15:52 EST 2012. Contains 206050 sequences.