n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 10 |
4 | 27 |
5 | 74 |
6 | 208 |
7 | 600 |
8 | 1762 |
9 | 5244 |
10 | 15788 |
11 | 48006 |
12 | 147199 |
13 | 454618 |
14 | 1412960 |
15 | 4416016 |
16 | 13869998 |
17 | 43756124 |
18 | 138587784 |
19 | 440523892 |
20 | 1404849486 |
21 | 4493472836 |
22 | 14411800352 |
23 | 46338611632 |
24 | 149338703380 |
25 | 482315951104 |
26 | 1560824670460 |
27 | 5060345244766 |
28 | 16434480777703 |
[1,2,4,10,27,74,208,600,1762,5244,15788,48006, 147199,454618,1412960,4416016,13869998,43756124, 138587784,440523892,1404849486,4493472836, 14411800352,46338611632,149338703380,482315951104, 1560824670460,5060345244766,16434480777703] |