n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 6 |
3 | 21 |
4 | 55 |
5 | 120 |
6 | 231 |
7 | 406 |
8 | 666 |
9 | 1035 |
10 | 1540 |
11 | 2211 |
12 | 3081 |
13 | 4186 |
14 | 5565 |
15 | 7260 |
16 | 9316 |
17 | 11781 |
18 | 14706 |
19 | 18145 |
20 | 22155 |
21 | 26796 |
22 | 32131 |
23 | 38226 |
24 | 45150 |
25 | 52975 |
26 | 61776 |
27 | 71631 |
28 | 82621 |
29 | 94830 |
30 | 108345 |
31 | 123256 |
32 | 139656 |
33 | 157641 |
34 | 177310 |
35 | 198765 |
36 | 222111 |
37 | 247456 |
38 | 274911 |
39 | 304590 |
[0,1,6,21,55,120,231,406,666,1035,1540,2211,3081, 4186,5565,7260,9316,11781,14706,18145,22155,26796, 32131,38226,45150,52975,61776,71631,82621,94830, 108345,123256,139656,157641,177310,198765,222111, 247456,274911,304590] |