n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 3 |
4 | 6 |
5 | 22 |
6 | 53 |
7 | 211 |
8 | 554 |
9 | 2306 |
10 | 6362 |
11 | 27230 |
12 | 77580 |
13 | 338444 |
14 | 986253 |
15 | 4362627 |
16 | 12927170 |
17 | 57788170 |
18 | 173452334 |
19 | 781825066 |
20 | 2370742868 |
21 | 10757497972 |
22 | 32892031042 |
23 | 150073096238 |
24 | 462030186916 |
25 | 2117778107732 |
26 | 6557906929108 |
27 | 30176799215196 |
28 | 93909078262808 |
[1,1,3,6,22,53,211,554,2306,6362,27230,77580, 338444,986253,4362627,12927170,57788170,173452334, 781825066,2370742868,10757497972,32892031042, 150073096238,462030186916,2117778107732, 6557906929108,30176799215196,93909078262808] |