n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 6 |
3 | 9 |
4 | 31 |
5 | 70 |
6 | 105 |
7 | 355 |
8 | 799 |
9 | 1798 |
10 | 2697 |
11 | 9103 |
12 | 20482 |
13 | 30723 |
14 | 69127 |
15 | 155536 |
16 | 233304 |
17 | 349956 |
18 | 524934 |
19 | 787401 |
20 | 2657479 |
21 | 5979328 |
22 | 8968992 |
23 | 13453488 |
24 | 20180232 |
25 | 30270348 |
26 | 45405522 |
27 | 68108283 |
28 | 153243637 |
29 | 1745540806 |
30 | 2618311209 |
31 | 8836800331 |
32 | 19882800745 |
33 | 67104452515 |
34 | 150985018159 |
35 | 339716290858 |
36 | 509574436287 |
37 | 1146542481646 |
38 | 1719813722469 |
39 | 13059835455001 |
40 | 44076944660629 |
41 | 753095921662471 |
42 | 1694465823740560 |
[1,4,6,9,31,70,105,355,799,1798,2697,9103,20482, 30723,69127,155536,233304,349956,524934,787401, 2657479,5979328,8968992,13453488,20180232, 30270348,45405522,68108283,153243637,1745540806, 2618311209,8836800331,19882800745,67104452515, 150985018159,339716290858,509574436287, 1146542481646,1719813722469,13059835455001, 44076944660629,753095921662471,1694465823740560] |