n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 9 |
4 | 20 |
5 | 42 |
6 | 78 |
7 | 139 |
8 | 231 |
9 | 372 |
10 | 573 |
11 | 861 |
12 | 1254 |
13 | 1791 |
14 | 2499 |
15 | 3432 |
16 | 4629 |
17 | 6162 |
18 | 8085 |
19 | 10492 |
20 | 13455 |
21 | 17094 |
22 | 21503 |
23 | 26832 |
24 | 33201 |
25 | 40795 |
26 | 49764 |
27 | 60333 |
28 | 72687 |
29 | 87096 |
30 | 103785 |
31 | 123075 |
32 | 145236 |
33 | 170646 |
34 | 199626 |
35 | 232617 |
36 | 269997 |
37 | 312277 |
38 | 359898 |
39 | 413448 |
40 | 473438 |
[1,3,9,20,42,78,139,231,372,573,861,1254,1791, 2499,3432,4629,6162,8085,10492,13455,17094,21503, 26832,33201,40795,49764,60333,72687,87096,103785, 123075,145236,170646,199626,232617,269997,312277, 359898,413448,473438] |