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| n | a(n) |
|---|---|
| 0 | 462 |
| 1 | 132 |
| 2 | 99 |
| 3 | 110 |
| 4 | 154 |
| 5 | 252 |
| 6 | 462 |
| 7 | 924 |
| 8 | 1980 |
| 9 | 4488 |
| 10 | 10659 |
| 11 | 26334 |
| 12 | 67298 |
| 13 | 177100 |
| 14 | 478170 |
| 15 | 1320660 |
| 16 | 3721860 |
| 17 | 10680120 |
| 18 | 31150350 |
| 19 | 92205036 |
| 20 | 276615108 |
| 21 | 840090328 |
| 22 | 2580277436 |
| 23 | 8007757560 |
| 24 | 25090973688 |
| 25 | 79319852304 |
| 26 | 252832029219 |
| 27 | 812127124158 |
| 28 | 2627470107570 |
| 29 | 8558045493228 |
[462,132,99,110,154,252,462,924,1980,4488,10659, 26334,67298,177100,478170,1320660,3721860, 10680120,31150350,92205036,276615108,840090328, 2580277436,8007757560,25090973688,79319852304, 252832029219,812127124158,2627470107570, 8558045493228] |