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| n | a(n) |
|---|---|
| 1 | 17 |
| 2 | 123 |
| 3 | 178 |
| 4 | 865 |
| 5 | 2781 |
| 6 | 7486 |
| 7 | 24615 |
| 8 | 85533 |
| 9 | 266059 |
| 10 | 866323 |
| 11 | 2817802 |
| 12 | 9024682 |
| 13 | 29161693 |
| 14 | 94823673 |
| 15 | 306912929 |
| 16 | 992919095 |
| 17 | 3216924395 |
| 18 | 10417479713 |
| 19 | 33734415945 |
| 20 | 109304966265 |
| 21 | 354134153161 |
| 22 | 1147139951832 |
| 23 | 3716343382506 |
[17,123,178,865,2781,7486,24615,85533,266059, 866323,2817802,9024682,29161693,94823673, 306912929,992919095,3216924395,10417479713, 33734415945,109304966265,354134153161, 1147139951832,3716343382506] |