The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 48 |
| 2 | 68 |
| 3 | 146 |
| 4 | 279 |
| 5 | 468 |
| 6 | 831 |
| 7 | 1528 |
| 8 | 2750 |
| 9 | 4874 |
| 10 | 8781 |
| 11 | 15768 |
| 12 | 28326 |
| 13 | 50656 |
| 14 | 91181 |
| 15 | 163232 |
| 16 | 293511 |
| 17 | 525366 |
| 18 | 945120 |
| 19 | 1691614 |
| 20 | 3042584 |
| 21 | 5446082 |
| 22 | 9796167 |
| 23 | 17533998 |
| 24 | 31538640 |
| 25 | 56451580 |
| 26 | 101540858 |
| 27 | 181748282 |
| 28 | 326914782 |
| 29 | 585147672 |
| 30 | 1052518323 |
[48,68,146,279,468,831,1528,2750,4874,8781,15768, 28326,50656,91181,163232,293511,525366,945120, 1691614,3042584,5446082,9796167,17533998,31538640, 56451580,101540858,181748282,326914782,585147672, 1052518323] |