OFFSET
1,1
COMMENTS
By theorem in A272382, case q=19, the sequence is finite with a(n)<1444.
LINKS
Vladimir Shevelev, Representation of positive integers by the form x^3+y^3+z^3-3xyz, arXiv:1508.05748 [math.NT], 2015.
MATHEMATICA
r[n_] := Reduce[0 <= x <= y <= z && z >= x+1 && n == x^3+y^3+z^3 - 3 x y z, {x, y, z}, Integers];
a261029[n_] := Which[rn = r[n]; rn === False, 0, rn[[0]] === And, 1, rn[[0]] === Or, Length[rn], True, Print["error ", rn]];
Select[Select[Range[1, 1171, 3], PrimeQ], a261029[38 #] == 3&] (* Jean-François Alcover, Dec 04 2018 *)
CROSSREFS
KEYWORD
nonn,fini,full
AUTHOR
Vladimir Shevelev, Apr 29 2016
EXTENSIONS
All terms (after first author's ones) were calculated by Peter J. C. Moses, Apr 29 2016
STATUS
approved