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| n | a(n) |
|---|---|
| 1 | 46 |
| 2 | 178 |
| 3 | 628 |
| 4 | 1948 |
| 5 | 5643 |
| 6 | 15185 |
| 7 | 39029 |
| 8 | 95779 |
| 9 | 227803 |
| 10 | 525427 |
| 11 | 1185737 |
| 12 | 2620063 |
| 13 | 5700715 |
| 14 | 12222279 |
| 15 | 25917801 |
| 16 | 54393195 |
| 17 | 113263283 |
| 18 | 234136955 |
| 19 | 481329353 |
| 20 | 984473879 |
| 21 | 2005754987 |
| 22 | 4072140479 |
| 23 | 8245166361 |
| 24 | 16654521715 |
| 25 | 33579036115 |
[46,178,628,1948,5643,15185,39029,95779,227803, 525427,1185737,2620063,5700715,12222279,25917801, 54393195,113263283,234136955,481329353,984473879, 2005754987,4072140479,8245166361,16654521715, 33579036115] |