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A041861 as a simple table
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 4 |
| 3 | 23 |
| 4 | 73 |
| 5 | 753 |
| 6 | 2332 |
| 7 | 12413 |
| 8 | 14745 |
| 9 | 56648 |
| 10 | 2393961 |
| 11 | 7238531 |
| 12 | 9632492 |
| 13 | 55400991 |
| 14 | 175835465 |
| 15 | 1813755641 |
| 16 | 5617102388 |
| 17 | 29899267581 |
| 18 | 35516369969 |
| 19 | 136448377488 |
| 20 | 5766348224465 |
| 21 | 17435493050883 |
| 22 | 23201841275348 |
| 23 | 133444699427623 |
| 24 | 423535939558217 |
| 25 | 4368804095009793 |
[1,3,4,23,73,753,2332,12413,14745,56648,2393961, 7238531,9632492,55400991,175835465,1813755641, 5617102388,29899267581,35516369969,136448377488, 5766348224465,17435493050883,23201841275348, 133444699427623,423535939558217,4368804095009793] |