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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 12 |
| 3 | 69 |
| 4 | 143 |
| 5 | 1051 |
| 6 | 1041 |
| 7 | 6722 |
| 8 | 8485 |
| 9 | 15907 |
| 10 | 8500 |
| 11 | 71585 |
| 12 | 72304 |
| 13 | 374159 |
| 14 | 192093 |
| 15 | 132237 |
| 16 | 83720 |
| 17 | 495591 |
| 18 | 405716 |
| 19 | 2262354 |
| 20 | 2347020 |
| 21 | 1676501 |
| 22 | 478044 |
| 23 | 3315250 |
| 24 | 5160917 |
| 25 | 5831333 |
| 26 | 1762619 |
| 27 | 2192192 |
| 28 | 1666381 |
| 29 | 8506917 |
| 30 | 12211917 |
| 31 | 58000458 |
[4,12,69,143,1051,1041,6722,8485,15907,8500,71585, 72304,374159,192093,132237,83720,495591,405716, 2262354,2347020,1676501,478044,3315250,5160917, 5831333,1762619,2192192,1666381,8506917,12211917, 58000458] |