OFFSET
1,1
COMMENTS
The nonzero terms of A139401.
EXAMPLE
a(1) = 3 because the first nonsquare positive integer is 2 and 2 is not a quadratic residue modulo 3.
CROSSREFS
KEYWORD
nonn
AUTHOR
Guilherme de Queiroz Hobbs (guilhermehobbs(AT)uol.com.br), Jan 08 2005
EXTENSIONS
Corrected and extended by David Wasserman, Mar 04 2008
Edited by Max Alekseyev, May 11 2010
STATUS
approved