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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 6 |
| 3 | 10 |
| 4 | 22 |
| 5 | 34 |
| 6 | 142 |
| 7 | 214 |
| 8 | 382 |
| 9 | 862 |
| 10 | 2302 |
| 11 | 5182 |
| 12 | 279934 |
| 13 | 944782 |
| 14 | 1572862 |
| 15 | 1990654 |
| 16 | 114791254 |
| 17 | 127401982 |
| 18 | 339738622 |
| 19 | 8153726974 |
| 20 | 21743271934 |
| 21 | 4696546738174 |
| 22 | 112717121716222 |
| 23 | 158329674399742 |
| 24 | 169075682574334 |
| 25 | 300578991243262 |
[3,6,10,22,34,142,214,382,862,2302,5182,279934, 944782,1572862,1990654,114791254,127401982, 339738622,8153726974,21743271934,4696546738174, 112717121716222,158329674399742,169075682574334, 300578991243262] |