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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 11 |
| 3 | 16 |
| 4 | 30 |
| 5 | 52 |
| 6 | 117 |
| 7 | 242 |
| 8 | 577 |
| 9 | 1360 |
| 10 | 3347 |
| 11 | 8278 |
| 12 | 20978 |
| 13 | 53346 |
| 14 | 137422 |
| 15 | 355978 |
| 16 | 928731 |
| 17 | 2434580 |
| 18 | 6414014 |
| 19 | 16961468 |
| 20 | 45017417 |
| 21 | 119840582 |
| 22 | 319916277 |
| 23 | 856089572 |
| 24 | 2295950281 |
| 25 | 6169664562 |
| 26 | 16608996492 |
| 27 | 44785220118 |
| 28 | 120942143132 |
| 29 | 327053057574 |
| 30 | 885545659155 |
| 31 | 2400570958904 |
| 32 | 6514679288762 |
| 33 | 17697582670400 |
| 34 | 48122529680805 |
[6,11,16,30,52,117,242,577,1360,3347,8278,20978, 53346,137422,355978,928731,2434580,6414014, 16961468,45017417,119840582,319916277,856089572, 2295950281,6169664562,16608996492,44785220118, 120942143132,327053057574,885545659155, 2400570958904,6514679288762,17697582670400, 48122529680805] |