The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 16 |
| 2 | 195 |
| 3 | 2210 |
| 4 | 24521 |
| 5 | 270396 |
| 6 | 2976415 |
| 7 | 32746870 |
| 8 | 360234741 |
| 9 | 3962640176 |
| 10 | 43589217035 |
| 11 | 479481914730 |
| 12 | 5274302648161 |
| 13 | 58017333896356 |
| 14 | 638190687176055 |
| 15 | 7020097601917790 |
| 16 | 77221073750104781 |
| 17 | 849431811638310936 |
[1,16,195,2210,24521,270396,2976415,32746870, 360234741,3962640176,43589217035,479481914730, 5274302648161,58017333896356,638190687176055, 7020097601917790,77221073750104781, 849431811638310936] |