n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 2 |
4 | 4 |
5 | 6 |
6 | 13 |
7 | 27 |
8 | 70 |
9 | 191 |
10 | 609 |
11 | 2130 |
12 | 8526 |
13 | 38156 |
14 | 194000 |
15 | 1109673 |
16 | 7176149 |
17 | 52238676 |
18 | 429004471 |
19 | 3970438003 |
20 | 41454181730 |
21 | 488046132076 |
22 | 6482590679282 |
23 | 97134793638750 |
24 | 1641654359781521 |
25 | 31285014253070731 |
26 | 672372121341768918 |
27 | 16299021330860540657 |
[1,1,2,2,4,6,13,27,70,191,609,2130,8526,38156, 194000,1109673,7176149,52238676,429004471, 3970438003,41454181730,488046132076,6482590679282, 97134793638750,1641654359781521,31285014253070731, 672372121341768918,16299021330860540657] |