OFFSET
1,1
LINKS
D. R. Heath-Brown, Primes represented by x^3+2*y^3, Acta Mathematica 2001, Volume 186, Issue 1, pp 1-84.
EXAMPLE
43 is in the sequence since 43 is prime and 43 = 3^3 + 2*2^3.
PROG
(PARI) okprime(n) = {for (i=0, floor(sqrtn(n, 3)), d = n - i^3; if (d % 2 == 0, y = sqrtn(d/2, 3); if (y == floor(y), write("hb.log", n, " = ", i, "^3 + 2*", floor(y), "^3"); return(1); ); ); ); return (0); }
CROSSREFS
KEYWORD
nonn
AUTHOR
Michel Marcus, Nov 23 2012
STATUS
approved