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Search: id:A028821
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A028821 Numbers n such that n^2 has digits in descending order. +0
2
0, 1, 2, 3, 8, 9, 10, 20, 21, 29, 30, 31, 80, 88, 90, 100, 200, 210, 290, 300, 310, 800, 880, 900, 1000, 2000, 2100, 2900, 2979, 3000, 3100, 3139, 8000, 8800, 9000, 10000, 20000, 21000, 29000, 29790, 30000, 31000, 31390, 31621, 80000, 88000 (list; graph; listen)
OFFSET

1,3

LINKS

P. De Geest, Palindromic Squares

CROSSREFS

Cf. A028822.

Sequence in context: A080288 A047360 A004825 this_sequence A075190 A047243 A099148

Adjacent sequences: A028818 A028819 A028820 this_sequence A028822 A028823 A028824

KEYWORD

nonn

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com)

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.


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