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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 12 |
| 5 | 14 |
| 6 | 26 |
| 7 | 32 |
| 8 | 80 |
| 9 | 124 |
| 10 | 230 |
| 11 | 284 |
| 12 | 562 |
| 13 | 866 |
| 14 | 1830 |
| 15 | 2630 |
| 16 | 3122 |
| 17 | 3428 |
| 18 | 6278 |
| 19 | 9900 |
| 20 | 19888 |
| 21 | 20092 |
| 22 | 22706 |
| 23 | 29088 |
| 24 | 31412 |
| 25 | 44402 |
| 26 | 47914 |
| 27 | 53120 |
| 28 | 102330 |
| 29 | 135164 |
| 30 | 299306 |
| 31 | 345918 |
[2,4,8,12,14,26,32,80,124,230,284,562,866,1830, 2630,3122,3428,6278,9900,19888,20092,22706,29088, 31412,44402,47914,53120,102330,135164,299306, 345918] |