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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 14 |
| 6 | 26 |
| 7 | 40 |
| 8 | 68 |
| 9 | 100 |
| 10 | 156 |
| 11 | 224 |
| 12 | 334 |
| 13 | 466 |
| 14 | 668 |
| 15 | 920 |
| 16 | 1278 |
| 17 | 1726 |
| 18 | 2356 |
| 19 | 3130 |
| 20 | 4190 |
| 21 | 5508 |
| 22 | 7254 |
| 23 | 9422 |
| 24 | 12268 |
| 25 | 15764 |
| 26 | 20284 |
| 27 | 25852 |
| 28 | 32934 |
| 29 | 41616 |
| 30 | 52578 |
| 31 | 65938 |
| 32 | 82648 |
| 33 | 102976 |
| 34 | 128144 |
| 35 | 158660 |
| 36 | 196222 |
| 37 | 241534 |
| 38 | 296946 |
| 39 | 363632 |
| 40 | 444650 |
| 41 | 541794 |
| 42 | 659268 |
| 43 | 799606 |
[0,2,4,8,14,26,40,68,100,156,224,334,466,668,920, 1278,1726,2356,3130,4190,5508,7254,9422,12268, 15764,20284,25852,32934,41616,52578,65938,82648, 102976,128144,158660,196222,241534,296946,363632, 444650,541794,659268,799606] |