+=========================================================================+
|   ||   Powers (k)                                                       |
| m ||  2  |  3  |  4  |  5  |  6  |  7  |  8  |  9  |  10  |  11  |  12  |
+---++--------------------------------------------------------------------+
| 1 ||  2  |  3  |  3  |  4  |  7  |  8  | 11  | 14  |  22  |  29  |  40  |
| 2 ||     |  2  |  2  |  3  |  6  |  7  |  8  | 12  |  15  |  26  |   ?  |
| 3 ||     |     |     |     |  3  |  5  |  8  |  9  |  14  |  20  |   ?  |
| 4 ||     |     |     |     |     |  4  |  6  |  9  |  13  |   ?  |   ?  |
| 5 ||     |     |     |     |     |     |  5  |  7  |  15  |   ?  |   ?  |
| 6 ||     |     |     |     |     |     |     |  6  |  16  |   ?  |   ?  |
| 7 ||     |     |     |     |     |     |     |     |   7  |   ?  |   ?  |