n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 6 |
3 | 12 |
4 | 21 |
5 | 39 |
6 | 66 |
7 | 120 |
8 | 201 |
9 | 363 |
10 | 606 |
11 | 1092 |
12 | 1821 |
13 | 3279 |
14 | 5466 |
15 | 9840 |
16 | 16401 |
17 | 29523 |
18 | 49206 |
19 | 88572 |
20 | 147621 |
21 | 265719 |
22 | 442866 |
23 | 797160 |
24 | 1328601 |
25 | 2391483 |
26 | 3985806 |
27 | 7174452 |
28 | 11957421 |
29 | 21523359 |
30 | 35872266 |
31 | 64570080 |
32 | 107616801 |
33 | 193710243 |
[1,3,6,12,21,39,66,120,201,363,606,1092,1821,3279, 5466,9840,16401,29523,49206,88572,147621,265719, 442866,797160,1328601,2391483,3985806,7174452, 11957421,21523359,35872266,64570080,107616801, 193710243] |