n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 14 |
4 | 83 |
5 | 570 |
6 | 4318 |
7 | 35068 |
8 | 299907 |
9 | 2668994 |
10 | 24513578 |
11 | 230981316 |
12 | 2222973742 |
13 | 21777680644 |
14 | 216603095388 |
15 | 2182653550712 |
16 | 22245324259811 |
17 | 228995136248850 |
18 | 2378208988952434 |
19 | 24893925007653748 |
20 | 262424206657706682 |
21 | 2784074166633171596 |
22 | 29707452318776988260 |
23 | 318664451642694840264 |
[1,1,3,14,83,570,4318,35068,299907,2668994, 24513578,230981316,2222973742,21777680644, 216603095388,2182653550712,22245324259811, 228995136248850,2378208988952434, 24893925007653748,262424206657706682, 2784074166633171596,29707452318776988260, 318664451642694840264] |