n | a(n) |
---|---|
1 | 2 |
2 | 6 |
3 | 12 |
4 | 22 |
5 | 40 |
6 | 74 |
7 | 140 |
8 | 270 |
9 | 528 |
10 | 1042 |
11 | 2068 |
12 | 4118 |
13 | 8216 |
14 | 16410 |
15 | 32796 |
16 | 65566 |
17 | 131104 |
18 | 262178 |
19 | 524324 |
20 | 1048614 |
21 | 2097192 |
22 | 4194346 |
23 | 8388652 |
24 | 16777262 |
25 | 33554480 |
26 | 67108914 |
27 | 134217780 |
28 | 268435510 |
29 | 536870968 |
30 | 1073741882 |
31 | 2147483708 |
[2,6,12,22,40,74,140,270,528,1042,2068,4118,8216, 16410,32796,65566,131104,262178,524324,1048614, 2097192,4194346,8388652,16777262,33554480, 67108914,134217780,268435510,536870968,1073741882, 2147483708] |