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Search: id:A030151
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A030151 Numbers n such that in n^2 the parity of digits alternates. +0
1
0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 16, 19, 23, 26, 27, 31, 36, 69, 74, 81, 84, 96, 111, 113, 119, 127, 137, 181, 187, 204, 237, 264, 269, 273, 277, 281, 296, 311, 384, 404, 426, 461, 463, 539, 574, 584, 606, 661, 673, 677, 689, 726, 736, 764, 819 (list; graph; listen)
OFFSET

1,3

CROSSREFS

Sequence in context: A008725 A011867 A026445 this_sequence A131617 A005577 A072966

Adjacent sequences: A030148 A030149 A030150 this_sequence A030152 A030153 A030154

KEYWORD

nonn,base

AUTHOR

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

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.


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