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| n | a(n) |
|---|---|
| 1 | 111 |
| 2 | 133 |
| 3 | 205 |
| 4 | 315 |
| 5 | 515 |
| 6 | 845 |
| 7 | 1625 |
| 8 | 3460 |
| 9 | 6880 |
| 10 | 17600 |
| 11 | 35400 |
| 12 | 65600 |
| 13 | 138200 |
| 14 | 310600 |
| 15 | 547000 |
| 16 | 1160000 |
| 17 | 1980000 |
| 18 | 4480000 |
| 19 | 9920000 |
| 20 | 20180000 |
| 21 | 40220000 |
| 22 | 57940000 |
| 23 | 174380000 |
| 24 | 528780000 |
| 25 | 1964040000 |
| 26 | 5800840000 |
| 27 | 17533280000 |
| 28 | 64641960000 |
[111,133,205,315,515,845,1625,3460,6880,17600, 35400,65600,138200,310600,547000,1160000,1980000, 4480000,9920000,20180000,40220000,57940000, 174380000,528780000,1964040000,5800840000, 17533280000,64641960000] |