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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 6 |
| 5 | 12 |
| 6 | 23 |
| 7 | 41 |
| 8 | 68 |
| 9 | 107 |
| 10 | 162 |
| 11 | 237 |
| 12 | 336 |
| 13 | 464 |
| 14 | 627 |
| 15 | 831 |
| 16 | 1084 |
| 17 | 1393 |
| 18 | 1765 |
| 19 | 2211 |
| 20 | 2740 |
| 21 | 3362 |
| 22 | 4089 |
| 23 | 4932 |
| 24 | 5905 |
| 25 | 7020 |
| 26 | 8293 |
| 27 | 9738 |
| 28 | 11371 |
| 29 | 13211 |
| 30 | 15273 |
| 31 | 17578 |
| 32 | 20145 |
| 33 | 22995 |
| 34 | 26149 |
| 35 | 29629 |
| 36 | 33460 |
| 37 | 37667 |
| 38 | 42274 |
| 39 | 47308 |
| 40 | 52797 |
| 41 | 58770 |
| 42 | 65257 |
[0,1,2,6,12,23,41,68,107,162,237,336,464,627,831, 1084,1393,1765,2211,2740,3362,4089,4932,5905,7020, 8293,9738,11371,13211,15273,17578,20145,22995, 26149,29629,33460,37667,42274,47308,52797,58770, 65257] |