n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 1 |
4 | 4 |
5 | 9 |
6 | 21 |
7 | 37 |
8 | 69 |
9 | 113 |
10 | 187 |
11 | 286 |
12 | 449 |
13 | 657 |
14 | 976 |
15 | 1397 |
16 | 2003 |
17 | 2788 |
18 | 3902 |
19 | 5323 |
20 | 7284 |
21 | 9789 |
22 | 13144 |
23 | 17405 |
24 | 23052 |
25 | 30142 |
26 | 39379 |
27 | 50967 |
28 | 65842 |
29 | 84368 |
30 | 107954 |
31 | 137126 |
32 | 173893 |
[0,0,1,4,9,21,37,69,113,187,286,449,657,976,1397, 2003,2788,3902,5323,7284,9789,13144,17405,23052, 30142,39379,50967,65842,84368,107954,137126, 173893] |