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.

78, 287, 364, 1096, 18183, 336634, 2727274, 19138757, 23529412, 25974026, 97744361, 120879122, 140017878, 165991904, 237762239, 288553552, 307692308, 333666334, 405436669, 428571430, 440553516, 447710186, 454545455, 473684212

Offset: 1

Author

Giovanni Resta, May 06 2006

Keywords

• base
• nonn

Examples

			287^2 = 82369 and 369-82 = 287.
A larger example is 1980198021^2 = 3921184202372316441, and 2372316441-392118420 = 1980198021.
		

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.

Crossrefs

Cf. A006886, A118936, A118937, A228381.