OFFSET
1,1
COMMENTS
Previous name was: Numbers j such that the equation a^2 + 3*j*b^2 = 3*c^2 + j*d^2 has no solutions in positive integers for a, b, c, d.
If j is in the sequence, so is j*k^2 for any positive integer k. - Charles R Greathouse IV, Dec 13 2013
LINKS
PROG
(PARI) for(n=1, 99, if ([]==qfbsolve(Qfb(1, 0, -3), n, 2), print1(n, ", "))); \\ Joerg Arndt, Jun 05 2022
CROSSREFS
KEYWORD
nonn
AUTHOR
V. Raman, Nov 25 2013
EXTENSIONS
Six more terms from V. Raman, Dec 13 2013
Edited by and better name from Jon E. Schoenfield and Joerg Arndt, Jun 05 2022
STATUS
approved