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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 61 |
| 3 | 413 |
| 4 | 1953 |
| 5 | 7313 |
| 6 | 23203 |
| 7 | 64920 |
| 8 | 164399 |
| 9 | 383735 |
| 10 | 836797 |
| 11 | 1722394 |
| 12 | 3373453 |
| 13 | 6327844 |
| 14 | 11427851 |
| 15 | 19956855 |
| 16 | 33823579 |
| 17 | 55806260 |
| 18 | 89871373 |
| 19 | 141584051 |
| 20 | 218630137 |
| 21 | 331472883 |
| 22 | 494170691 |
| 23 | 725385986 |
| 24 | 1049619335 |
| 25 | 1498707293 |
[6,61,413,1953,7313,23203,64920,164399,383735, 836797,1722394,3373453,6327844,11427851,19956855, 33823579,55806260,89871373,141584051,218630137, 331472883,494170691,725385986,1049619335, 1498707293] |