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| n | a(n) |
|---|---|
| 1 | 567 |
| 2 | 1151 |
| 3 | 2784 |
| 4 | 6978 |
| 5 | 18454 |
| 6 | 49782 |
| 7 | 136336 |
| 8 | 380466 |
| 9 | 1070438 |
| 10 | 3029761 |
| 11 | 8627013 |
| 12 | 24630825 |
| 13 | 70475042 |
| 14 | 202058195 |
| 15 | 579821752 |
| 16 | 1665118858 |
| 17 | 4785253832 |
| 18 | 13755703417 |
| 19 | 39553064198 |
| 20 | 113760165084 |
| 21 | 327218002791 |
| 22 | 941299811884 |
| 23 | 2708082174203 |
[567,1151,2784,6978,18454,49782,136336,380466, 1070438,3029761,8627013,24630825,70475042, 202058195,579821752,1665118858,4785253832, 13755703417,39553064198,113760165084,327218002791, 941299811884,2708082174203] |