The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 10 |
| 5 | 40 |
| 6 | 47 |
| 7 | 58 |
| 8 | 73 |
| 9 | 92 |
| 10 | 113 |
| 11 | 124 |
| 12 | 130 |
| 13 | 887 |
| 14 | 1234 |
| 15 | 1538 |
| 16 | 2063 |
| 17 | 2591 |
| 18 | 2786 |
| 19 | 3145 |
| 20 | 21688 |
| 21 | 32381 |
| 22 | 39170 |
| 23 | 47791 |
| 24 | 83878 |
[1,2,5,10,40,47,58,73,92,113,124,130,887,1234, 1538,2063,2591,2786,3145,21688,32381,39170,47791, 83878] |