2+4+6+8+10+12+14+16+18+20+22+24+26+28+30=240
6+6+8+10+12+14+16+18+20+22+24+26+28+30=240
12+8+10+12+14+16+18+20+22+24+26+28+30=240
20+10+12+14+16+18+20+22+24+26+28+30=240
30+12+14+16+18+20+22+24+26+28+30=240
42+14+16+18+20+22+24+26+28+30=240
56+16+18+20+22+24+26+28+30=240
72+18+20+22+24+26+28+30=240
90+20+22+24+26+28+30=240
110+22+24+26+28+30=240
132+24+26+28+30=240
156+26+28+30=240
182+28+30=240
210+30=240
