OFFSET
1,1
COMMENTS
The volume of every primitive trirectangular tetrahedron with integer sides is divisible by 15840. See A031173 for more comments.
These primitive trirectangular tetrahedrons are primitive 3-simplices.
LINKS
Eric Weisstein's World of Mathematics, Trirectangular Tetrahedron
CROSSREFS
KEYWORD
nonn
AUTHOR
Ralf Steiner, Nov 23 2017
STATUS
approved