The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 19 |
| 2 | 1873 |
| 3 | 147497 |
| 4 | 792736 |
| 5 | 4551733 |
| 6 | 4967176 |
| 7 | 7333813 |
| 8 | 8539521 |
| 9 | 8674128 |
| 10 | 12388853 |
| 11 | 12948373 |
| 12 | 18331664 |
| 13 | 24834369 |
| 14 | 36294936 |
| 15 | 50952310 |
| 16 | 116340016 |
| 17 | 170434387 |
| 18 | 196966352 |
| 19 | 222505713 |
| 20 | 236504256 |
| 21 | 286766145 |
| 22 | 390771936 |
| 23 | 426323088 |
| 24 | 532998481 |
| 25 | 778930925 |
| 26 | 805653001 |
[19,1873,147497,792736,4551733,4967176,7333813, 8539521,8674128,12388853,12948373,18331664, 24834369,36294936,50952310,116340016,170434387, 196966352,222505713,236504256,286766145,390771936, 426323088,532998481,778930925,805653001] |