Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 18 |
3 | 70 |
4 | 555 |
5 | 2961 |
6 | 31108 |
7 | 213228 |
8 | 2799765 |
9 | 23455135 |
10 | 369569046 |
11 | 3659001138 |
12 | 67261566463 |
13 | 768390239085 |
14 | 16142775951240 |
15 | 209002145031256 |
16 | 4939689441079593 |
17 | 71478733600689723 |
18 | 1877081987610245530 |
19 | 30021068112289683870 |
20 | 867211878275933435091 |
21 | 15190660464818580038473 |
[1,3,18,70,555,2961,31108,213228,2799765,23455135, 369569046,3659001138,67261566463,768390239085, 16142775951240,209002145031256,4939689441079593, 71478733600689723,1877081987610245530, 30021068112289683870,867211878275933435091, 15190660464818580038473] |