n | a(n) |
---|---|
1 | 4 |
2 | 13 |
3 | 36 |
4 | 158 |
5 | 708 |
6 | 4236 |
7 | 26412 |
8 | 180070 |
9 | 1256914 |
10 | 8999762 |
11 | 65225244 |
12 | 477772294 |
13 | 3525803320 |
14 | 26185264801 |
15 | 195490126328 |
16 | 1466095545930 |
17 | 11038514989344 |
18 | 83401050695432 |
19 | 632087998742988 |
20 | 4803854169636124 |
21 | 36600736833265244 |
22 | 279496328812771427 |
[4,13,36,158,708,4236,26412,180070,1256914, 8999762,65225244,477772294,3525803320,26185264801, 195490126328,1466095545930,11038514989344, 83401050695432,632087998742988,4803854169636124, 36600736833265244,279496328812771427] |