n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 3 |
3 | 8 |
4 | 25 |
5 | 79 |
6 | 248 |
7 | 777 |
8 | 2435 |
9 | 7632 |
10 | 23921 |
11 | 74975 |
12 | 234992 |
13 | 736529 |
14 | 2308483 |
15 | 7235416 |
16 | 22677769 |
17 | 71078319 |
18 | 222778856 |
19 | 698249753 |
20 | 2188505347 |
21 | 6859373216 |
22 | 21499148257 |
23 | 67384199871 |
24 | 211200478176 |
25 | 661959956001 |
26 | 2074763216131 |
[0,1,3,8,25,79,248,777,2435,7632,23921,74975, 234992,736529,2308483,7235416,22677769,71078319, 222778856,698249753,2188505347,6859373216, 21499148257,67384199871,211200478176,661959956001, 2074763216131] |