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| n | a(n) |
|---|---|
| 1 | 12 |
| 2 | 32 |
| 3 | 112 |
| 4 | 446 |
| 5 | 1524 |
| 6 | 5214 |
| 7 | 17000 |
| 8 | 54822 |
| 9 | 173244 |
| 10 | 541910 |
| 11 | 1676448 |
| 12 | 5146030 |
| 13 | 15683076 |
| 14 | 47518926 |
| 15 | 143238872 |
| 16 | 429867830 |
| 17 | 1285009740 |
| 18 | 3828046534 |
| 19 | 11368576272 |
| 20 | 33669165246 |
| 21 | 99465517716 |
| 22 | 293175780030 |
| 23 | 862355454792 |
| 24 | 2531766659654 |
[12,32,112,446,1524,5214,17000,54822,173244, 541910,1676448,5146030,15683076,47518926, 143238872,429867830,1285009740,3828046534, 11368576272,33669165246,99465517716,293175780030, 862355454792,2531766659654] |