n | a(n) |
---|---|
1 | 2 |
2 | 14 |
3 | 74 |
4 | 286 |
5 | 1157 |
6 | 4778 |
7 | 19623 |
8 | 80478 |
9 | 330293 |
10 | 1355629 |
11 | 5563527 |
12 | 22832914 |
13 | 93707772 |
14 | 384582275 |
15 | 1578347684 |
16 | 6477630782 |
17 | 26584574434 |
18 | 109104640685 |
19 | 447771795953 |
20 | 1837681518261 |
21 | 7541951930181 |
22 | 30952609765223 |
23 | 127031312347552 |
24 | 521343900861138 |
[2,14,74,286,1157,4778,19623,80478,330293,1355629, 5563527,22832914,93707772,384582275,1578347684, 6477630782,26584574434,109104640685,447771795953, 1837681518261,7541951930181,30952609765223, 127031312347552,521343900861138] |