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Search: id:A030153
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A030153 Numbers n such that in n and n^2 the parity of digits alternates. +0
1
0, 1, 2, 3, 4, 5, 6, 7, 9, 16, 23, 27, 36, 69, 74, 81, 96, 127, 181, 187, 296, 874, 2327, 2369, 2723, 2727, 2763, 3816, 4589, 5874, 6563, 6589, 6727, 8323, 10181, 12723, 18163, 18587, 21236, 21274, 29236, 29274, 30127, 43296, 52361, 78163, 87616 (list; graph; listen)
OFFSET

1,3

CROSSREFS

Sequence in context: A160339 A033072 A030287 this_sequence A039126 A083376 A044957

Adjacent sequences: A030150 A030151 A030152 this_sequence A030154 A030155 A030156

KEYWORD

nonn,base

AUTHOR

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

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.


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