n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 9 |
5 | 21 |
6 | 56 |
7 | 148 |
8 | 421 |
9 | 1207 |
10 | 3535 |
11 | 10407 |
12 | 31879 |
13 | 97111 |
14 | 304344 |
15 | 958636 |
16 | 3045621 |
17 | 9696563 |
18 | 31478459 |
19 | 101764723 |
20 | 334038583 |
21 | 1100234409 |
22 | 3639933291 |
23 | 12057585459 |
24 | 40418753669 |
25 | 135042191401 |
26 | 455549125751 |
27 | 1540601216083 |
28 | 5223311667307 |
29 | 17725604119599 |
30 | 60646085848546 |
31 | 206928271796266 |
32 | 710805289086933 |
[1,1,2,4,9,21,56,148,421,1207,3535,10407,31879, 97111,304344,958636,3045621,9696563,31478459, 101764723,334038583,1100234409,3639933291, 12057585459,40418753669,135042191401,455549125751, 1540601216083,5223311667307,17725604119599, 60646085848546,206928271796266,710805289086933] |