Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 7 |
4 | 18 |
5 | 52 |
6 | 154 |
7 | 450 |
8 | 1301 |
9 | 3753 |
10 | 10838 |
11 | 31327 |
12 | 90568 |
13 | 261813 |
14 | 756786 |
15 | 2187496 |
16 | 6323023 |
17 | 18277014 |
18 | 52830706 |
19 | 152709940 |
20 | 441415867 |
21 | 1275934888 |
22 | 3688154521 |
23 | 10660798289 |
24 | 30815580241 |
25 | 89074003241 |
26 | 257472939209 |
27 | 744238632362 |
28 | 2151259638423 |
29 | 6218325456983 |
[1,3,7,18,52,154,450,1301,3753,10838,31327,90568, 261813,756786,2187496,6323023,18277014,52830706, 152709940,441415867,1275934888,3688154521, 10660798289,30815580241,89074003241,257472939209, 744238632362,2151259638423,6218325456983] |