n | a(n) |
---|---|
1 | 0 |
2 | 20 |
3 | 56 |
4 | 84 |
5 | 165 |
6 | 220 |
7 | 364 |
8 | 455 |
9 | 680 |
10 | 816 |
11 | 1140 |
12 | 1330 |
13 | 1771 |
14 | 2024 |
15 | 2300 |
16 | 3654 |
17 | 4060 |
18 | 4960 |
19 | 5456 |
20 | 7770 |
21 | 8436 |
22 | 9139 |
23 | 10660 |
24 | 11480 |
25 | 13244 |
26 | 14190 |
27 | 16215 |
28 | 17296 |
29 | 18424 |
30 | 23426 |
31 | 24804 |
32 | 26235 |
33 | 32509 |
34 | 34220 |
35 | 37820 |
36 | 39711 |
37 | 47905 |
38 | 50116 |
39 | 52394 |
40 | 57155 |
[0,20,56,84,165,220,364,455,680,816,1140,1330, 1771,2024,2300,3654,4060,4960,5456,7770,8436,9139, 10660,11480,13244,14190,16215,17296,18424,23426, 24804,26235,32509,34220,37820,39711,47905,50116, 52394,57155] |