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A118938 Sub-Kaprekar numbers (2): n such that n=r-q and n^2=q*10^m+r, for some m>=1, q>=0, 0<=r<10^m, with n not a power of 10. +0
3
78, 287, 364, 1096, 18183, 336634, 2727274, 19138757, 23529412, 25974026, 97744361, 120879122, 140017878, 165991904, 237762239, 288553552, 307692308, 333666334, 405436669, 428571430, 440553516, 447710186, 454545455, 473684212 (list; graph; listen)
OFFSET

1,1

EXAMPLE

287^2 = 82369 and 369-82=287. A larger example: 1980198021^2=3921184202372316441,

and 2372316441-392118420=1980198021.

CROSSREFS

Cf. A006886, A118936, A118937.

Sequence in context: A044410 A044791 A068130 this_sequence A007255 A003913 A074089

Adjacent sequences: A118935 A118936 A118937 this_sequence A118939 A118940 A118941

KEYWORD

base,nonn

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), May 06 2006

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


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