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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 6 |
| 2 | 13 |
| 3 | 19 |
| 4 | 70 |
| 5 | 89 |
| 6 | 159 |
| 7 | 407 |
| 8 | 566 |
| 9 | 7199 |
| 10 | 137347 |
| 11 | 1655363 |
| 12 | 1792710 |
| 13 | 5240783 |
| 14 | 7033493 |
| 15 | 12274276 |
| 16 | 43856321 |
| 17 | 56130597 |
| 18 | 156117515 |
| 19 | 992835687 |
| 20 | 37883873621 |
| 21 | 228296077413 |
| 22 | 494476028447 |
| 23 | 722772105860 |
| 24 | 2662792346027 |
| 25 | 3385564451887 |
| 26 | 6048356797914 |
[1,6,13,19,70,89,159,407,566,7199,137347,1655363, 1792710,5240783,7033493,12274276,43856321, 56130597,156117515,992835687,37883873621, 228296077413,494476028447,722772105860, 2662792346027,3385564451887,6048356797914] |