n | a(n) |
---|---|
1 | 4 |
2 | 16 |
3 | 128 |
4 | 512 |
5 | 6144 |
6 | 98304 |
7 | 393216 |
8 | 9437184 |
9 | 37748736 |
10 | 1207959552 |
11 | 43486543872 |
12 | 1739461754880 |
13 | 6957847019520 |
14 | 333976656936960 |
15 | 1335906627747840 |
16 | 80154397664870400 |
17 | 4809263859892224000 |
18 | 19237055439568896000 |
19 | 1385067991648960512000 |
20 | 99724895398725156864000 |
[4,16,128,512,6144,98304,393216,9437184,37748736, 1207959552,43486543872,1739461754880, 6957847019520,333976656936960,1335906627747840, 80154397664870400,4809263859892224000, 19237055439568896000,1385067991648960512000, 99724895398725156864000] |