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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. 6
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; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Hans Havermann, Table of n, a(n) for n = 1..1000

Hans Havermann, A large number of terms pairing them with the their A118937 partners.

EXAMPLE

287^2 = 82369 and 369-82 = 287.

A larger example is 1980198021^2 = 3921184202372316441, and 2372316441-392118420 = 1980198021.

CROSSREFS

Cf. A006886, A118936, A118937, A228381.

Sequence in context: A232386 A257484 A068130 * A206004 A317412 A231393

Adjacent sequences:  A118935 A118936 A118937 * A118939 A118940 A118941

KEYWORD

base,nonn

AUTHOR

Giovanni Resta, May 06 2006

STATUS

approved

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Last modified April 8 07:39 EDT 2020. Contains 333312 sequences. (Running on oeis4.)