1, 2, 4, 8, 16, 32, ...
2, 6, 18, 54, 162, 486, ...
4, 20, 100, 500, 2500, 12500, ...
8, 72, 648, 5832, 52488, 472392, ...
16, 272, 4624, 78608, 1336336, 22717712, ...
32, 1056, 34848, 1149984, 37949472, 1252332576, ...
.
对称版本S(n,m)开始
1, 2, 4, 8, 16, 32, ...
2, 8, 30, 110, 402, 1478, ...
4, 30, 184, 1116, 7060, 47220, ...
8, 110, 1116, 11600, 130968, 1622120, ...
16, 402, 7060, 130968, 2672416, 60666672, ...
32, 1478, 47220, 1622120, 60666672, 2504664128, ...