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Search: id:A115656
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A115656 Both n and the reverse of n are powerful(1) numbers (A001694). +0
4
1, 4, 8, 9, 27, 72, 100, 121, 144, 169, 343, 400, 441, 484, 576, 675, 676, 800, 900, 961, 1000, 1089, 1331, 1800, 2700, 3087, 4000, 7200, 7803, 8000, 9000, 9801, 10000, 10201, 10404, 10609, 12100, 12321, 12544, 12769, 14400, 14641, 14884 (list; graph; listen)
OFFSET

1,2

EXAMPLE

9801=3^4*11^2 and 1089=3^2*11^2.

CROSSREFS

Cf. A001694, A115655, A085751.

Sequence in context: A115697 A075783 A098121 this_sequence A076705 A035132 A077572

Adjacent sequences: A115653 A115654 A115655 this_sequence A115657 A115658 A115659

KEYWORD

base,nonn

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), Jan 28 2006

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.


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