| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 4 |
| 2 | 22 |
| 3 | 64 |
| 4 | 140 |
| 5 | 260 |
| 6 | 434 |
| 7 | 672 |
| 8 | 984 |
| 9 | 1380 |
| 10 | 1870 |
| 11 | 2464 |
| 12 | 3172 |
| 13 | 4004 |
| 14 | 4970 |
| 15 | 6080 |
| 16 | 7344 |
| 17 | 8772 |
| 18 | 10374 |
| 19 | 12160 |
| 20 | 14140 |
| 21 | 16324 |
| 22 | 18722 |
| 23 | 21344 |
| 24 | 24200 |
| 25 | 27300 |
| 26 | 30654 |
| 27 | 34272 |
| 28 | 38164 |
| 29 | 42340 |
| 30 | 46810 |
| 31 | 51584 |
| 32 | 56672 |
| 33 | 62084 |
| 34 | 67830 |
| 35 | 73920 |
| 36 | 80364 |
| 37 | 87172 |
| 38 | 94354 |
| 39 | 101920 |
| 40 | 109880 |
[0,4,22,64,140,260,434,672,984,1380,1870,2464, 3172,4004,4970,6080,7344,8772,10374,12160,14140, 16324,18722,21344,24200,27300,30654,34272,38164, 42340,46810,51584,56672,62084,67830,73920,80364, 87172,94354,101920,109880] |