Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 6 |
3 | 24 |
4 | 108 |
5 | 406 |
6 | 1572 |
7 | 5961 |
8 | 22788 |
9 | 87209 |
10 | 335010 |
11 | 1290376 |
12 | 4983162 |
13 | 19286891 |
14 | 74797176 |
15 | 290586771 |
16 | 1130716508 |
17 | 4406049037 |
18 | 17191077082 |
19 | 67152699384 |
20 | 262594530318 |
21 | 1027851765350 |
22 | 4026831276662 |
23 | 15788979175102 |
24 | 61954847930374 |
25 | 243278117470476 |
26 | 955907159445522 |
[1,6,24,108,406,1572,5961,22788,87209,335010, 1290376,4983162,19286891,74797176,290586771, 1130716508,4406049037,17191077082,67152699384, 262594530318,1027851765350,4026831276662, 15788979175102,61954847930374,243278117470476, 955907159445522] |