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| n | a(n) |
|---|---|
| 0 | 3 |
| 1 | 46 |
| 2 | 357 |
| 3 | 1908 |
| 4 | 7969 |
| 5 | 27846 |
| 6 | 84903 |
| 7 | 232336 |
| 8 | 582114 |
| 9 | 1355172 |
| 10 | 2964494 |
| 11 | 6147336 |
| 12 | 12168702 |
| 13 | 23125508 |
| 14 | 42389874 |
| 15 | 75240912 |
| 16 | 129747485 |
| 17 | 217979970 |
| 18 | 357647355 |
| 19 | 574277340 |
| 20 | 904081815 |
| 21 | 1397678490 |
| 22 | 2124871905 |
| 23 | 3180733920 |
| 24 | 4693265460 |
| 25 | 6832968168 |
| 26 | 9824707116 |
| 27 | 13962304272 |
[3,46,357,1908,7969,27846,84903,232336,582114, 1355172,2964494,6147336,12168702,23125508, 42389874,75240912,129747485,217979970,357647355, 574277340,904081815,1397678490,2124871905, 3180733920,4693265460,6832968168,9824707116, 13962304272] |