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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 2 |
| 3 | 4 |
| 4 | 6 |
| 5 | 8 |
| 6 | 16 |
| 7 | 18 |
| 8 | 26 |
| 9 | 30 |
| 10 | 42 |
| 11 | 52 |
| 12 | 54 |
| 13 | 60 |
| 14 | 98 |
| 15 | 138 |
| 16 | 148 |
| 17 | 164 |
| 18 | 180 |
| 19 | 188 |
| 20 | 198 |
| 21 | 232 |
| 22 | 268 |
| 23 | 366 |
| 24 | 494 |
| 25 | 556 |
| 26 | 636 |
| 27 | 700 |
| 28 | 830 |
| 29 | 908 |
| 30 | 2164 |
| 31 | 5764 |
| 32 | 9854 |
| 33 | 10384 |
| 34 | 17550 |
| 35 | 20236 |
| 36 | 32820 |
| 37 | 42372 |
| 38 | 77466 |
| 39 | 106562 |
[0,2,4,6,8,16,18,26,30,42,52,54,60,98,138,148,164, 180,188,198,232,268,366,494,556,636,700,830,908, 2164,5764,9854,10384,17550,20236,32820,42372, 77466,106562] |