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A281029 as a simple table
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 2 |
| 3 | 96 |
| 4 | 532 |
| 5 | 2321 |
| 6 | 8886 |
| 7 | 31700 |
| 8 | 108034 |
| 9 | 357542 |
| 10 | 1158596 |
| 11 | 3694697 |
| 12 | 11633400 |
| 13 | 36255175 |
| 14 | 112035020 |
| 15 | 343760934 |
| 16 | 1048431286 |
| 17 | 3181035325 |
| 18 | 9608044744 |
| 19 | 28905403029 |
| 20 | 86656025654 |
| 21 | 258976361436 |
| 22 | 771797361724 |
| 23 | 2294287282225 |
[0,2,96,532,2321,8886,31700,108034,357542,1158596, 3694697,11633400,36255175,112035020,343760934, 1048431286,3181035325,9608044744,28905403029, 86656025654,258976361436,771797361724, 2294287282225] |