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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 26 |
| 3 | 134 |
| 4 | 443 |
| 5 | 1163 |
| 6 | 2636 |
| 7 | 5384 |
| 8 | 10165 |
| 9 | 18037 |
| 10 | 30430 |
| 11 | 49226 |
| 12 | 76847 |
| 13 | 116351 |
| 14 | 171536 |
| 15 | 247052 |
| 16 | 348521 |
| 17 | 482665 |
| 18 | 657442 |
| 19 | 882190 |
| 20 | 1167779 |
| 21 | 1526771 |
[1,26,134,443,1163,2636,5384,10165,18037,30430, 49226,76847,116351,171536,247052,348521,482665, 657442,882190,1167779,1526771] |