The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 8 |
| 4 | 16 |
| 5 | 1024 |
| 6 | 64 |
| 7 | 279936 |
| 8 | 65536 |
| 9 | 10077696 |
| 10 | 1048576 |
| 11 | 100000000000 |
| 12 | 16777216 |
| 13 | 106993205379072 |
| 14 | 78364164096 |
| 15 | 35184372088832 |
| 16 | 281474976710656 |
| 17 | 295147905179352825856 |
| 18 | 101559956668416 |
| 19 | 708235345355337676357632 |
| 20 | 1152921504606846976 |
| 21 | 46005119909369701466112 |
| 22 | 10000000000000000000000 |
[1,1,8,16,1024,64,279936,65536,10077696,1048576, 100000000000,16777216,106993205379072,78364164096, 35184372088832,281474976710656, 295147905179352825856,101559956668416, 708235345355337676357632,1152921504606846976, 46005119909369701466112,10000000000000000000000] |