OFFSET
1,3
COMMENTS
Also, apart from initial 0, the full list of 2-Kaprekar numbers.
REFERENCES
Italo Ghersi, Matematica dilettevole e curiosa, p. 190, Hoepli, Milano, 1967. [Vincenzo Librandi, Apr 22 2010]
LINKS
D. E. Iannucci, The Kaprekar numbers, J. Integer Sequences, Vol. 3, 2000, #1.2.
EXAMPLE
45 is a 2-White number since 45^2 = 2025 and 20 + 25 = 45.
CROSSREFS
KEYWORD
full,nonn,fini,base
AUTHOR
EXTENSIONS
Offset set to 1 by Paolo P. Lava, Jul 12 2016
STATUS
approved