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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 11 |
| 3 | 35 |
| 4 | 345 |
| 5 | 1129 |
| 6 | 11091 |
| 7 | 36315 |
| 8 | 356721 |
| 9 | 1168017 |
| 10 | 11473371 |
| 11 | 37567443 |
| 12 | 369023049 |
| 13 | 1208298105 |
| 14 | 11869049763 |
| 15 | 38863020555 |
| 16 | 381749439969 |
| 17 | 1249968331809 |
| 18 | 12278374244523 |
| 19 | 40203278289027 |
| 20 | 394914722339385 |
| 21 | 1293075627640713 |
[1,1,11,35,345,1129,11091,36315,356721,1168017, 11473371,37567443,369023049,1208298105, 11869049763,38863020555,381749439969, 1249968331809,12278374244523,40203278289027, 394914722339385,1293075627640713] |