n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 14 |
3 | 130 |
4 | 700 |
5 | 2635 |
6 | 7826 |
7 | 19684 |
8 | 43800 |
9 | 88725 |
10 | 166870 |
11 | 295526 |
12 | 498004 |
13 | 804895 |
14 | 1255450 |
15 | 1899080 |
16 | 2796976 |
17 | 4023849 |
18 | 5669790 |
19 | 7842250 |
20 | 10668140 |
21 | 14296051 |
22 | 18898594 |
23 | 24674860 |
24 | 31853000 |
25 | 40692925 |
26 | 51489126 |
27 | 64573614 |
[0,1,14,130,700,2635,7826,19684,43800,88725, 166870,295526,498004,804895,1255450,1899080, 2796976,4023849,5669790,7842250,10668140,14296051, 18898594,24674860,31853000,40692925,51489126, 64573614] |