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| n | a(n) |
|---|---|
| 1 | 117 |
| 2 | 1112 |
| 3 | 8494 |
| 4 | 55833 |
| 5 | 321015 |
| 6 | 1643645 |
| 7 | 7654949 |
| 8 | 32878503 |
| 9 | 131625788 |
| 10 | 495839830 |
| 11 | 1770680805 |
| 12 | 6031355004 |
| 13 | 19703984612 |
| 14 | 62024181142 |
| 15 | 188838365213 |
| 16 | 557980426201 |
| 17 | 1604875696815 |
| 18 | 4504699403782 |
| 19 | 12367743536793 |
| 20 | 33281266235062 |
[117,1112,8494,55833,321015,1643645,7654949, 32878503,131625788,495839830,1770680805, 6031355004,19703984612,62024181142,188838365213, 557980426201,1604875696815,4504699403782, 12367743536793,33281266235062] |