n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 6 |
4 | 16 |
5 | 27 |
6 | 79 |
7 | 126 |
8 | 331 |
9 | 632 |
10 | 1436 |
11 | 2509 |
12 | 6800 |
13 | 11218 |
14 | 26044 |
15 | 51958 |
16 | 114941 |
17 | 205183 |
18 | 502228 |
19 | 875545 |
20 | 2027193 |
21 | 3963938 |
22 | 8389190 |
23 | 15504996 |
24 | 37555290 |
25 | 66502859 |
26 | 145809046 |
27 | 292860564 |
28 | 621638120 |
29 | 1156065731 |
30 | 2701045579 |
[1,1,3,6,16,27,79,126,331,632,1436,2509,6800, 11218,26044,51958,114941,205183,502228,875545, 2027193,3963938,8389190,15504996,37555290, 66502859,145809046,292860564,621638120,1156065731, 2701045579] |