n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 7 |
3 | 16 |
4 | 39 |
5 | 104 |
6 | 301 |
7 | 927 |
8 | 2983 |
9 | 9901 |
10 | 33615 |
11 | 116115 |
12 | 406627 |
13 | 1440039 |
14 | 5147891 |
15 | 18550588 |
16 | 67310955 |
17 | 245716112 |
18 | 901759969 |
19 | 3325067016 |
20 | 12312494483 |
21 | 45766188970 |
22 | 170702447097 |
23 | 638698318874 |
24 | 2396598337975 |
25 | 9016444758528 |
26 | 34003644251233 |
27 | 128524394659942 |
28 | 486793096819011 |
[1,3,7,16,39,104,301,927,2983,9901,33615,116115, 406627,1440039,5147891,18550588,67310955, 245716112,901759969,3325067016,12312494483, 45766188970,170702447097,638698318874, 2396598337975,9016444758528,34003644251233, 128524394659942,486793096819011] |