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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 20 |
| 2 | 52 |
| 3 | 116 |
| 4 | 180 |
| 5 | 308 |
| 6 | 372 |
| 7 | 564 |
| 8 | 692 |
| 9 | 884 |
| 10 | 1012 |
| 11 | 1332 |
| 12 | 1460 |
| 13 | 1844 |
| 14 | 2036 |
| 15 | 2292 |
| 16 | 2548 |
| 17 | 3060 |
| 18 | 3252 |
| 19 | 3828 |
| 20 | 4084 |
| 21 | 4468 |
| 22 | 4788 |
| 23 | 5492 |
| 24 | 5748 |
| 25 | 6388 |
| 26 | 6772 |
| 27 | 7348 |
| 28 | 7732 |
| 29 | 8628 |
| 30 | 8884 |
| 31 | 9844 |
| 32 | 10356 |
| 33 | 10996 |
| 34 | 11508 |
| 35 | 12276 |
| 36 | 12660 |
| 37 | 13812 |
| 38 | 14388 |
| 39 | 15156 |
[0,20,52,116,180,308,372,564,692,884,1012,1332, 1460,1844,2036,2292,2548,3060,3252,3828,4084,4468, 4788,5492,5748,6388,6772,7348,7732,8628,8884,9844, 10356,10996,11508,12276,12660,13812,14388,15156] |