The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 8964 |
| 2 | 24566 |
| 3 | 69984 |
| 4 | 202184 |
| 5 | 584904 |
| 6 | 1680652 |
| 7 | 4766064 |
| 8 | 13262440 |
| 9 | 37406584 |
| 10 | 106733108 |
| 11 | 306510784 |
| 12 | 883092532 |
| 13 | 2547336424 |
| 14 | 7346752856 |
| 15 | 21169604112 |
| 16 | 61041637594 |
| 17 | 176340932776 |
| 18 | 510406546962 |
| 19 | 1479462558424 |
| 20 | 4292455882114 |
[8964,24566,69984,202184,584904,1680652,4766064, 13262440,37406584,106733108,306510784,883092532, 2547336424,7346752856,21169604112,61041637594, 176340932776,510406546962,1479462558424, 4292455882114] |