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A115681 Brilliant numbers (A078972) whose digit reversal is the product of 2 palindromes greater than 1. +0
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4, 6, 9, 21, 121, 253, 407, 451, 559, 583, 667, 671, 803, 869, 2173, 2537, 5063, 5183, 5893, 10201, 13231, 15251, 16171, 18281, 19291, 22523, 22733, 24743, 25283, 26563, 27383, 28583, 28783, 31613, 35653, 37673, 38683, 40567, 45349, 46217 (list; graph; listen)
OFFSET

1,1

EXAMPLE

22523=101*223 is brilliant and 32522=2*16261.

CROSSREFS

Cf. A078972, A115683.

Sequence in context: A115698 A039566 A032817 this_sequence A137253 A035135 A046338

Adjacent sequences: A115678 A115679 A115680 this_sequence A115682 A115683 A115684

KEYWORD

nonn,base

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), Jan 31 2006

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.


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