n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 1 |
4 | 3 |
5 | 1 |
6 | 3 |
7 | 7 |
8 | 10 |
9 | 12 |
10 | 23 |
11 | 31 |
12 | 58 |
13 | 93 |
14 | 171 |
15 | 243 |
16 | 422 |
17 | 634 |
18 | 1142 |
19 | 1684 |
20 | 2971 |
21 | 4406 |
22 | 7768 |
23 | 11502 |
24 | 20502 |
25 | 30242 |
26 | 53039 |
27 | 79161 |
28 | 138410 |
29 | 207536 |
30 | 362391 |
31 | 544895 |
32 | 947189 |
33 | 1431794 |
34 | 2473232 |
35 | 3749944 |
36 | 6459373 |
37 | 9823917 |
38 | 16879245 |
39 | 25745781 |
40 | 44112347 |
[0,0,1,3,1,3,7,10,12,23,31,58,93,171,243,422,634, 1142,1684,2971,4406,7768,11502,20502,30242,53039, 79161,138410,207536,362391,544895,947189,1431794, 2473232,3749944,6459373,9823917,16879245,25745781, 44112347] |