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| n | a(n) |
|---|---|
| 1 | 2444 |
| 2 | 6271 |
| 3 | 18341 |
| 4 | 50654 |
| 5 | 131557 |
| 6 | 317141 |
| 7 | 701282 |
| 8 | 1467387 |
| 9 | 2896645 |
| 10 | 5442921 |
| 11 | 9816954 |
| 12 | 17096392 |
| 13 | 28757926 |
| 14 | 47075958 |
| 15 | 75218973 |
| 16 | 117547715 |
| 17 | 179888422 |
| 18 | 270566220 |
| 19 | 400421776 |
| 20 | 584035872 |
| 21 | 840159021 |
| 22 | 1193892062 |
| 23 | 1677629192 |
[2444,6271,18341,50654,131557,317141,701282, 1467387,2896645,5442921,9816954,17096392,28757926, 47075958,75218973,117547715,179888422,270566220, 400421776,584035872,840159021,1193892062, 1677629192] |