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| n | a(n) |
|---|---|
| 1 | 183 |
| 2 | 402 |
| 3 | 1408 |
| 4 | 3908 |
| 5 | 13040 |
| 6 | 35934 |
| 7 | 121313 |
| 8 | 333722 |
| 9 | 1122579 |
| 10 | 3092874 |
| 11 | 10415091 |
| 12 | 28671638 |
| 13 | 96526178 |
| 14 | 265814264 |
| 15 | 894920841 |
| 16 | 2464173816 |
| 17 | 8296223239 |
| 18 | 22844373272 |
| 19 | 76910486512 |
| 20 | 211778585434 |
| 21 | 713000156702 |
| 22 | 1963298223048 |
| 23 | 6609877528867 |
[183,402,1408,3908,13040,35934,121313,333722, 1122579,3092874,10415091,28671638,96526178, 265814264,894920841,2464173816,8296223239, 22844373272,76910486512,211778585434,713000156702, 1963298223048,6609877528867] |