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| n | a(n) |
|---|---|
| 0 | 7 |
| 1 | 26 |
| 2 | 85 |
| 3 | 281 |
| 4 | 928 |
| 5 | 3065 |
| 6 | 10123 |
| 7 | 33434 |
| 8 | 110425 |
| 9 | 364709 |
| 10 | 1204552 |
| 11 | 3978365 |
| 12 | 13139647 |
| 13 | 43397306 |
| 14 | 143331565 |
| 15 | 473392001 |
| 16 | 1563507568 |
| 17 | 5163914705 |
| 18 | 17055251683 |
| 19 | 56329669754 |
| 20 | 186044260945 |
| 21 | 614462452589 |
| 22 | 2029431618712 |
| 23 | 6702757308725 |
| 24 | 22137703544887 |
| 25 | 73115867943386 |
| 26 | 241485307375045 |
[7,26,85,281,928,3065,10123,33434,110425,364709, 1204552,3978365,13139647,43397306,143331565, 473392001,1563507568,5163914705,17055251683, 56329669754,186044260945,614462452589, 2029431618712,6702757308725,22137703544887, 73115867943386,241485307375045] |