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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 29 |
| 3 | 90 |
| 4 | 294 |
| 5 | 937 |
| 6 | 3166 |
| 7 | 10738 |
| 8 | 37285 |
| 9 | 129586 |
| 10 | 452042 |
| 11 | 1578499 |
| 12 | 5515546 |
| 13 | 19279612 |
| 14 | 67403955 |
| 15 | 235679364 |
| 16 | 824104430 |
| 17 | 2881741245 |
| 18 | 10077105830 |
| 19 | 35238715476 |
| 20 | 123227200603 |
| 21 | 430917662802 |
| 22 | 1506893871278 |
| 23 | 5269524537393 |
| 24 | 18427245321410 |
[3,29,90,294,937,3166,10738,37285,129586,452042, 1578499,5515546,19279612,67403955,235679364, 824104430,2881741245,10077105830,35238715476, 123227200603,430917662802,1506893871278, 5269524537393,18427245321410] |