Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 16 |
4 | 66 |
5 | 279 |
6 | 1201 |
7 | 5242 |
8 | 23133 |
9 | 103015 |
10 | 462269 |
11 | 2088146 |
12 | 9487405 |
13 | 43328580 |
14 | 198798447 |
15 | 915950385 |
16 | 4236322720 |
17 | 19661850045 |
18 | 91549502656 |
19 | 427539667095 |
20 | 2002120576312 |
21 | 9399659155395 |
22 | 44234927105888 |
23 | 208631813215116 |
[1,4,16,66,279,1201,5242,23133,103015,462269, 2088146,9487405,43328580,198798447,915950385, 4236322720,19661850045,91549502656,427539667095, 2002120576312,9399659155395,44234927105888, 208631813215116] |