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| n | a(n) |
|---|---|
| 1 | 230 |
| 2 | 516 |
| 3 | 1030 |
| 4 | 1908 |
| 5 | 3528 |
| 6 | 6312 |
| 7 | 11390 |
| 8 | 20316 |
| 9 | 36520 |
| 10 | 65646 |
| 11 | 118702 |
| 12 | 216006 |
| 13 | 394802 |
| 14 | 728492 |
| 15 | 1348550 |
| 16 | 2522796 |
| 17 | 4730304 |
| 18 | 8960110 |
| 19 | 16997998 |
| 20 | 32539860 |
| 21 | 62348810 |
| 22 | 120381720 |
| 23 | 232534604 |
| 24 | 451979570 |
| 25 | 878630354 |
| 26 | 1716513328 |
| 27 | 3353186654 |
[230,516,1030,1908,3528,6312,11390,20316,36520, 65646,118702,216006,394802,728492,1348550,2522796, 4730304,8960110,16997998,32539860,62348810, 120381720,232534604,451979570,878630354, 1716513328,3353186654] |