Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 4 |
2 | 32 |
3 | 148 |
4 | 748 |
5 | 3657 |
6 | 18108 |
7 | 89658 |
8 | 444359 |
9 | 2202106 |
10 | 10912859 |
11 | 54080195 |
12 | 268002332 |
13 | 1328125172 |
14 | 6581720890 |
15 | 32616691234 |
16 | 161636836900 |
17 | 801015249307 |
18 | 3969549529089 |
19 | 19671689743540 |
20 | 97485967746453 |
21 | 483106130247259 |
[4,32,148,748,3657,18108,89658,444359,2202106, 10912859,54080195,268002332,1328125172,6581720890, 32616691234,161636836900,801015249307, 3969549529089,19671689743540,97485967746453, 483106130247259] |