OFFSET
1,1
LINKS
T. Lassila, H. Pfoertner et al., Sum of unique prime squares? Thread in NG sci.math, Oct 21 2003.
EXAMPLE
a(1)=29: 2^2 = 4 = -29^2 + 19^2 + 17^2 + 11^2 + 7^2 + 5^2
a(2)=37: 3^2 = 9 = -37^2 + 23^2 + 19^2 + 17^2 + 11^2 + 7^2 + 5^2 + 2^2
a(3)=19: 5^2 = 25 = -19^2 + 17^2 + 13^2 - 11^2 + 7^2
a(4)=19: 7^2 = 49 = -19^2 + 17^2 + 11^2
CROSSREFS
KEYWORD
nonn
AUTHOR
Hugo Pfoertner, Nov 18 2003
EXTENSIONS
More terms from David Wasserman, Sep 01 2005
STATUS
approved