n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 12 |
3 | 56 |
4 | 272 |
5 | 1312 |
6 | 6336 |
7 | 30592 |
8 | 147712 |
9 | 713216 |
10 | 3443712 |
11 | 16627712 |
12 | 80285696 |
13 | 387653632 |
14 | 1871757312 |
15 | 9037643776 |
16 | 43637604352 |
17 | 210700992512 |
18 | 1017354387456 |
19 | 4912221519872 |
20 | 23718303629312 |
21 | 114522100596736 |
22 | 552961616904192 |
23 | 2669934870003712 |
[1,2,12,56,272,1312,6336,30592,147712,713216, 3443712,16627712,80285696,387653632,1871757312, 9037643776,43637604352,210700992512,1017354387456, 4912221519872,23718303629312,114522100596736, 552961616904192,2669934870003712] |