Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 4 |
2 | 32 |
3 | 139 |
4 | 678 |
5 | 3182 |
6 | 15199 |
7 | 72514 |
8 | 346244 |
9 | 1653214 |
10 | 7893443 |
11 | 37688062 |
12 | 179946317 |
13 | 859175558 |
14 | 4102237937 |
15 | 19586633161 |
16 | 93518758201 |
17 | 446516665710 |
18 | 2131948036306 |
19 | 10179244758257 |
20 | 48602040050313 |
21 | 232056341426270 |
22 | 1107981178164225 |
[4,32,139,678,3182,15199,72514,346244,1653214, 7893443,37688062,179946317,859175558,4102237937, 19586633161,93518758201,446516665710, 2131948036306,10179244758257,48602040050313, 232056341426270,1107981178164225] |