n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 8 |
3 | 52 |
4 | 240 |
5 | 1004 |
6 | 4072 |
7 | 16356 |
8 | 65504 |
9 | 262108 |
10 | 1048536 |
11 | 4194260 |
12 | 16777168 |
13 | 67108812 |
14 | 268435400 |
15 | 1073741764 |
16 | 4294967232 |
17 | 17179869116 |
18 | 68719476664 |
19 | 274877906868 |
20 | 1099511627696 |
21 | 4398046511020 |
22 | 17592186044328 |
23 | 70368744177572 |
24 | 281474976710560 |
25 | 1125899906842524 |
[1,0,8,52,240,1004,4072,16356,65504,262108, 1048536,4194260,16777168,67108812,268435400, 1073741764,4294967232,17179869116,68719476664, 274877906868,1099511627696,4398046511020, 17592186044328,70368744177572,281474976710560, 1125899906842524] |