x0 squares ---- ------------- 1 2,384,640 2 3,255,552 3 2,909,952 4 2,714,880 5 3,078,144 6 2,287,104 7 2,020,608 8 2,282,496 9 1,821,696 10 1,570,560 11 1,604,352 12 1,242,368 13 1,328,128 14 1,397,760 15 1,130,496 16 661,504 17 651,264 18 414,464 19 182,272 20 178,944 21 131,840 22 83,712 23 69,120 24 48,128 25 27,136 26 38,400 27 25,344 28 6,912 29 3,072 30 0 31 0 32 0 33 0 ---------- 33,550,848