n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 9 |
3 | 42 |
4 | 130 |
5 | 315 |
6 | 651 |
7 | 1204 |
8 | 2052 |
9 | 3285 |
10 | 5005 |
11 | 7326 |
12 | 10374 |
13 | 14287 |
14 | 19215 |
15 | 25320 |
16 | 32776 |
17 | 41769 |
18 | 52497 |
19 | 65170 |
20 | 80010 |
21 | 97251 |
22 | 117139 |
23 | 139932 |
24 | 165900 |
25 | 195325 |
26 | 228501 |
27 | 265734 |
28 | 307342 |
29 | 353655 |
30 | 405015 |
31 | 461776 |
32 | 524304 |
33 | 592977 |
34 | 668185 |
35 | 750330 |
36 | 839826 |
37 | 937099 |
[0,1,9,42,130,315,651,1204,2052,3285,5005,7326, 10374,14287,19215,25320,32776,41769,52497,65170, 80010,97251,117139,139932,165900,195325,228501, 265734,307342,353655,405015,461776,524304,592977, 668185,750330,839826,937099] |