OFFSET
1,1
COMMENTS
Quintic trinomial x^5-nx+m is reducible into cubic and quadratic factors if and only a(n)<>0.
Particular case for n=1 x^5-x+m have 3 solutions for m<>0 see A179106. Rest two (5-3) giving m=0.
PROG
(Magma) [IntegralQuarticPoints([5, 0, 0, 0, 4*n]) : n in [1..50]];
CROSSREFS
KEYWORD
nonn
AUTHOR
Artur Jasinski, Jul 29 2011
STATUS
approved