三角形开始:
0;
1, 1;
3, 4, 3;
7, 12, 12, 7;
15, 32, 36, 32, 15;
31, 80, 100, 100, 80, 31;
63, 192, 270, 280, 270, 192, 63;
127, 448, 714, 770, 770, 714, 448, 127;
255, 1024, 1848, 2128, 2100, 2128, 1848, 1024, 255;
511, 2304, 4680, 5880, 5796, 5796, 5880, 4680, 2304, 511;
1023, 5120, 11610, 16080, 16380, 15624, 16380, 16080, 11610, 5120, 1023;
...