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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 14 |
| 3 | 114 |
| 4 | 594 |
| 5 | 2532 |
| 6 | 9658 |
| 7 | 34066 |
| 8 | 113930 |
| 9 | 366358 |
| 10 | 1141614 |
| 11 | 3465398 |
| 12 | 10291022 |
| 13 | 29988178 |
| 14 | 85961454 |
| 15 | 242870564 |
| 16 | 677436550 |
| 17 | 1867877934 |
[1,14,114,594,2532,9658,34066,113930,366358, 1141614,3465398,10291022,29988178,85961454, 242870564,677436550,1867877934] |