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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 36 |
| 3 | 82 |
| 4 | 221 |
| 5 | 493 |
| 6 | 1095 |
| 7 | 2654 |
| 8 | 6203 |
| 9 | 14182 |
| 10 | 33242 |
| 11 | 77781 |
| 12 | 180207 |
| 13 | 419683 |
| 14 | 979186 |
| 15 | 2277663 |
| 16 | 5301348 |
| 17 | 12351370 |
| 18 | 28755901 |
| 19 | 66942929 |
| 20 | 155895195 |
| 21 | 362997882 |
| 22 | 845159395 |
| 23 | 1967953186 |
| 24 | 4582333234 |
| 25 | 10669471213 |
| 26 | 24843252803 |
| 27 | 57846384111 |
[6,36,82,221,493,1095,2654,6203,14182,33242,77781, 180207,419683,979186,2277663,5301348,12351370, 28755901,66942929,155895195,362997882,845159395, 1967953186,4582333234,10669471213,24843252803, 57846384111] |