The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 272 |
| 2 | 476 |
| 3 | 832 |
| 4 | 1736 |
| 5 | 3536 |
| 6 | 8336 |
| 7 | 18832 |
| 8 | 48128 |
| 9 | 115952 |
| 10 | 312416 |
| 11 | 782032 |
| 12 | 2180576 |
| 13 | 5582576 |
| 14 | 15917216 |
| 15 | 41303632 |
| 16 | 119516768 |
| 17 | 312747632 |
| 18 | 914077856 |
| 19 | 2405006032 |
| 20 | 7078411616 |
| 21 | 18692677616 |
| 22 | 55290785696 |
| 23 | 146389598032 |
| 24 | 434571648608 |
[272,476,832,1736,3536,8336,18832,48128,115952, 312416,782032,2180576,5582576,15917216,41303632, 119516768,312747632,914077856,2405006032, 7078411616,18692677616,55290785696,146389598032, 434571648608] |