Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 2 |
4 | 10 |
5 | 20 |
6 | 52 |
7 | 112 |
8 | 234 |
9 | 484 |
10 | 992 |
11 | 2018 |
12 | 4060 |
13 | 8140 |
14 | 16336 |
15 | 32706 |
16 | 65474 |
17 | 131004 |
18 | 262056 |
19 | 524184 |
20 | 1048460 |
21 | 2097044 |
22 | 4194176 |
23 | 8388480 |
24 | 16777084 |
25 | 33554264 |
26 | 67108704 |
27 | 134217560 |
28 | 268435256 |
29 | 536870708 |
30 | 1073741584 |
31 | 2147483416 |
32 | 4294967054 |
33 | 8589934308 |
34 | 17179868884 |
35 | 34359738044 |
36 | 68719476404 |
37 | 137438953124 |
38 | 274877906592 |
39 | 549755813536 |
[0,0,0,2,10,20,52,112,234,484,992,2018,4060,8140, 16336,32706,65474,131004,262056,524184,1048460, 2097044,4194176,8388480,16777084,33554264, 67108704,134217560,268435256,536870708,1073741584, 2147483416,4294967054,8589934308,17179868884, 34359738044,68719476404,137438953124,274877906592, 549755813536] |