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| n | a(n) |
|---|---|
| 0 | 18 |
| 1 | 19 |
| 2 | 37 |
| 3 | 56 |
| 4 | 149 |
| 5 | 652 |
| 6 | 801 |
| 7 | 14269 |
| 8 | 15070 |
| 9 | 74549 |
| 10 | 164168 |
| 11 | 238717 |
| 12 | 402885 |
| 13 | 641602 |
| 14 | 23500557 |
| 15 | 24142159 |
| 16 | 47642716 |
| 17 | 71784875 |
| 18 | 191212466 |
| 19 | 836634739 |
| 20 | 1027847205 |
| 21 | 18310037224 |
| 22 | 19337884429 |
| 23 | 95661574940 |
[18,19,37,56,149,652,801,14269,15070,74549,164168, 238717,402885,641602,23500557,24142159,47642716, 71784875,191212466,836634739,1027847205, 18310037224,19337884429,95661574940] |