The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 194 |
| 3 | 1610 |
| 4 | 8407 |
| 5 | 32002 |
| 6 | 98191 |
| 7 | 254286 |
| 8 | 596715 |
| 9 | 1267128 |
| 10 | 2506286 |
| 11 | 4646666 |
| 12 | 8239907 |
| 13 | 13945450 |
| 14 | 22784572 |
| 15 | 35977540 |
| 16 | 55368882 |
| 17 | 82940928 |
| 18 | 121737174 |
| 19 | 174853556 |
| 20 | 247158893 |
| 21 | 343382312 |
| 22 | 470183200 |
| 23 | 634503574 |
| 24 | 847118119 |
| 25 | 1117272006 |
[8,194,1610,8407,32002,98191,254286,596715, 1267128,2506286,4646666,8239907,13945450,22784572, 35977540,55368882,82940928,121737174,174853556, 247158893,343382312,470183200,634503574,847118119, 1117272006] |