n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 3 |
4 | 10 |
5 | 43 |
6 | 223 |
7 | 1364 |
8 | 9643 |
9 | 77545 |
10 | 699954 |
11 | 7013079 |
12 | 77261803 |
13 | 928420028 |
14 | 12085410927 |
15 | 169413357149 |
16 | 2544367949634 |
17 | 40758600588283 |
18 | 693684669653911 |
19 | 12499734669634036 |
20 | 237734433597317987 |
21 | 4759174459355303521 |
[1,1,3,10,43,223,1364,9643,77545,699954,7013079, 77261803,928420028,12085410927,169413357149, 2544367949634,40758600588283,693684669653911, 12499734669634036,237734433597317987, 4759174459355303521] |