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Search: id:A118937
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A118937 Sub-Kaprekar numbers (1): n such that n=q-r 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
11, 101, 1001, 1078, 1287, 1364, 10001, 11096, 100001, 118183, 1000001, 1336634, 10000001, 12727274, 100000001, 123529412, 1000000001, 1019138757, 1025974026, 1097744361, 1120879122, 1140017878, 1165991904, 1237762239, 1288553552 (list; graph; listen)
OFFSET

1,1

EXAMPLE

1287^2 = 1656369 and 1656-369 = 1287.

A larger example: 1594563333^2 = 2542632222948068889 and

2542632222-948068889=1594563333.

CROSSREFS

Cf. A006886, A118936, A118938.

Sequence in context: A037550 A138894 A122105 this_sequence A031997 A056810 A116098

Adjacent sequences: A118934 A118935 A118936 this_sequence A118938 A118939 A118940

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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