n | a(n) |
---|---|
1 | 0 |
2 | 12 |
3 | 48 |
4 | 240 |
5 | 960 |
6 | 4032 |
7 | 16128 |
8 | 65280 |
9 | 261120 |
10 | 1047552 |
11 | 4190208 |
12 | 16773120 |
13 | 67092480 |
14 | 268419072 |
15 | 1073676288 |
16 | 4294901760 |
17 | 17179607040 |
18 | 68719214592 |
19 | 274876858368 |
20 | 1099510579200 |
21 | 4398042316800 |
22 | 17592181850112 |
23 | 70368727400448 |
24 | 281474959933440 |
25 | 1125899839733760 |
[0,12,48,240,960,4032,16128,65280,261120,1047552, 4190208,16773120,67092480,268419072,1073676288, 4294901760,17179607040,68719214592,274876858368, 1099510579200,4398042316800,17592181850112, 70368727400448,281474959933440,1125899839733760] |