n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 16 |
4 | 62 |
5 | 270 |
6 | 1257 |
7 | 6096 |
8 | 30398 |
9 | 154756 |
10 | 800834 |
11 | 4199720 |
12 | 22269976 |
13 | 119207942 |
14 | 643277553 |
15 | 3495713184 |
16 | 19113486390 |
17 | 105074982876 |
18 | 580435709622 |
19 | 3220217022144 |
20 | 17935186513044 |
21 | 100243540330188 |
22 | 562080274898250 |
23 | 3160904659483104 |
24 | 17823384503589996 |
25 | 100749266778698280 |
[1,2,5,16,62,270,1257,6096,30398,154756,800834, 4199720,22269976,119207942,643277553,3495713184, 19113486390,105074982876,580435709622, 3220217022144,17935186513044,100243540330188, 562080274898250,3160904659483104, 17823384503589996,100749266778698280] |