n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 10 |
4 | 28 |
5 | 86 |
6 | 282 |
7 | 984 |
8 | 3630 |
9 | 14138 |
10 | 57904 |
11 | 248854 |
12 | 1118554 |
13 | 5246980 |
14 | 25619018 |
15 | 129961850 |
16 | 683561488 |
17 | 3722029314 |
18 | 20946195078 |
19 | 121671375312 |
20 | 728511702462 |
21 | 4491224518274 |
22 | 28475638336144 |
23 | 185499720543262 |
24 | 1240358846060122 |
25 | 8505894459387628 |
26 | 59771243719783410 |
[1,2,4,10,28,86,282,984,3630,14138,57904,248854, 1118554,5246980,25619018,129961850,683561488, 3722029314,20946195078,121671375312,728511702462, 4491224518274,28475638336144,185499720543262, 1240358846060122,8505894459387628, 59771243719783410] |