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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 5 |
| 3 | 14 |
| 4 | 36 |
| 5 | 80 |
| 6 | 157 |
| 7 | 280 |
| 8 | 464 |
| 9 | 726 |
| 10 | 1085 |
| 11 | 1562 |
| 12 | 2180 |
| 13 | 2964 |
| 14 | 3941 |
| 15 | 5140 |
| 16 | 6592 |
| 17 | 8330 |
| 18 | 10389 |
| 19 | 12806 |
| 20 | 15620 |
| 21 | 18872 |
| 22 | 22605 |
| 23 | 26864 |
| 24 | 31696 |
| 25 | 37150 |
| 26 | 43277 |
| 27 | 50130 |
| 28 | 57764 |
| 29 | 66236 |
| 30 | 75605 |
| 31 | 85932 |
| 32 | 97280 |
| 33 | 109714 |
| 34 | 123301 |
| 35 | 138110 |
| 36 | 154212 |
| 37 | 171680 |
| 38 | 190589 |
| 39 | 211016 |
[2,5,14,36,80,157,280,464,726,1085,1562,2180,2964, 3941,5140,6592,8330,10389,12806,15620,18872,22605, 26864,31696,37150,43277,50130,57764,66236,75605, 85932,97280,109714,123301,138110,154212,171680, 190589,211016] |