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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 29 |
| 3 | 77 |
| 4 | 202 |
| 5 | 529 |
| 6 | 1385 |
| 7 | 3626 |
| 8 | 9493 |
| 9 | 24853 |
| 10 | 65066 |
| 11 | 170345 |
| 12 | 445969 |
| 13 | 1167562 |
| 14 | 3056717 |
| 15 | 8002589 |
| 16 | 20951050 |
| 17 | 54850561 |
| 18 | 143600633 |
| 19 | 375951338 |
| 20 | 984253381 |
| 21 | 2576808805 |
| 22 | 6746173034 |
| 23 | 17661710297 |
| 24 | 46238957857 |
| 25 | 121055163274 |
[1,10,29,77,202,529,1385,3626,9493,24853,65066, 170345,445969,1167562,3056717,8002589,20951050, 54850561,143600633,375951338,984253381,2576808805, 6746173034,17661710297,46238957857,121055163274] |