n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 1 |
4 | 3 |
5 | 11 |
6 | 31 |
7 | 71 |
8 | 155 |
9 | 379 |
10 | 1051 |
11 | 2971 |
12 | 8053 |
13 | 21165 |
14 | 56057 |
15 | 152881 |
16 | 425491 |
17 | 1186227 |
18 | 3287971 |
19 | 9102787 |
20 | 25346457 |
21 | 71111377 |
22 | 200425149 |
23 | 565676629 |
24 | 1597672277 |
25 | 4520632981 |
26 | 12827046181 |
27 | 36493762501 |
28 | 104027787451 |
29 | 296947847203 |
30 | 848765305351 |
31 | 2429671858671 |
[1,1,1,1,3,11,31,71,155,379,1051,2971,8053,21165, 56057,152881,425491,1186227,3287971,9102787, 25346457,71111377,200425149,565676629,1597672277, 4520632981,12827046181,36493762501,104027787451, 296947847203,848765305351,2429671858671] |