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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 5 |
| 3 | 12 |
| 4 | 43 |
| 5 | 106 |
| 6 | 321 |
| 7 | 787 |
| 8 | 1960 |
| 9 | 4354 |
| 10 | 9386 |
| 11 | 18790 |
| 12 | 36362 |
| 13 | 66789 |
| 14 | 118936 |
| 15 | 203840 |
| 16 | 340195 |
| 17 | 551192 |
| 18 | 873343 |
| 19 | 1351457 |
| 20 | 2052221 |
| 21 | 3056798 |
| 22 | 4480565 |
| 23 | 6462678 |
| 24 | 9194098 |
| 25 | 12902867 |
| 26 | 17892986 |
| 27 | 24524478 |
| 28 | 33265476 |
| 29 | 44666016 |
| 30 | 59426834 |
| 31 | 78364873 |
| 32 | 102502765 |
| 33 | 133024660 |
| 34 | 171390035 |
| 35 | 219278224 |
[1,1,5,12,43,106,321,787,1960,4354,9386,18790, 36362,66789,118936,203840,340195,551192,873343, 1351457,2052221,3056798,4480565,6462678,9194098, 12902867,17892986,24524478,33265476,44666016, 59426834,78364873,102502765,133024660,171390035, 219278224] |