n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 4 |
6 | 5 |
7 | 19 |
8 | 104 |
9 | 278 |
10 | 1572 |
11 | 7358 |
12 | 52634 |
13 | 339052 |
14 | 2042566 |
15 | 15536572 |
16 | 126846972 |
17 | 1151836020 |
18 | 10165085388 |
19 | 96057148432 |
20 | 994220454980 |
21 | 10590200175612 |
22 | 119935489527056 |
23 | 1408614893855392 |
24 | 17402089145195476 |
25 | 225976767338666884 |
26 | 3007790832940708856 |
[1,1,1,1,4,5,19,104,278,1572,7358,52634,339052, 2042566,15536572,126846972,1151836020,10165085388, 96057148432,994220454980,10590200175612, 119935489527056,1408614893855392, 17402089145195476,225976767338666884, 3007790832940708856] |