thank you, hadn't thought of that!
=)

for the numbers, they were actually (kinda) randomly chosen: i needed 7, 4, 6, 5, 8 and 2, and somehow i realized sin of 307 would fit; then i just searched for any arctangents that would possibly have the sequence 17253098 - and found!
perl -e 'for ($x=0;$x<10000;$x++){for ($y=0;$y<10000;$y++){print "($x,$y) >>". atan2($x,$y)."\n" if atan2($x,$y)=~/17253098/}}'

that took me about two minutes while i was at work doing nothing, so i guess they were well spent.