The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 10 |
| 1 | 11 |
| 2 | 21 |
| 3 | 53 |
| 4 | 74 |
| 5 | 127 |
| 6 | 2614 |
| 7 | 2741 |
| 8 | 5355 |
| 9 | 13451 |
| 10 | 18806 |
| 11 | 32257 |
| 12 | 663946 |
| 13 | 696203 |
| 14 | 1360149 |
| 15 | 3416501 |
| 16 | 4776650 |
| 17 | 8193151 |
| 18 | 168639670 |
| 19 | 176832821 |
| 20 | 345472491 |
| 21 | 867777803 |
| 22 | 1213250294 |
| 23 | 2081028097 |
| 24 | 42833812234 |
[10,11,21,53,74,127,2614,2741,5355,13451,18806, 32257,663946,696203,1360149,3416501,4776650, 8193151,168639670,176832821,345472491,867777803, 1213250294,2081028097,42833812234] |