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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 17 |
| 5 | 34 |
| 6 | 121 |
| 7 | 265 |
| 8 | 969 |
| 9 | 2246 |
| 10 | 8351 |
| 11 | 20118 |
| 12 | 75676 |
| 13 | 187524 |
| 14 | 711369 |
| 15 | 1801161 |
| 16 | 6876749 |
| 17 | 17710990 |
| 18 | 67962103 |
| 19 | 177474154 |
| 20 | 683797608 |
| 21 | 1806245948 |
| 22 | 6982719679 |
| 23 | 18624035846 |
| 24 | 72200420096 |
| 25 | 194169343564 |
| 26 | 754537816956 |
| 27 | 2043762871460 |
| 28 | 7958294450084 |
| 29 | 21691396049160 |
| 30 | 84615387463873 |
| 31 | 231907336128537 |
[1,1,3,5,17,34,121,265,969,2246,8351,20118,75676, 187524,711369,1801161,6876749,17710990,67962103, 177474154,683797608,1806245948,6982719679, 18624035846,72200420096,194169343564,754537816956, 2043762871460,7958294450084,21691396049160, 84615387463873,231907336128537] |