OFFSET
1,4
LINKS
T. D. Noe, Table of n, a(n) for n = 1..1000
MATHEMATICA
Table[cnt = 0; If[IntegerQ[Sqrt[n]], cnt++]; Do[b = 1; found = False; While[q = n - k*b^2; ! found && q > 0, If[IntegerQ[Sqrt[q]], cnt++; found = True]; b++], {k, n}]; cnt, {n, 100}] (* T. D. Noe, Sep 11 2012 *)
PROG
(PARI) for(n=1, 100, sol=0; for(k=0, n-1, for(x=1, n, if(issquare(n-k*x*x)&&n-k*x*x>0, sol++; break))); print1(sol", ")) /* V. Raman, Oct 16 2012 */
CROSSREFS
KEYWORD
nonn
AUTHOR
V. Raman, Sep 07 2012
STATUS
approved