n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 14 |
5 | 42 |
6 | 127 |
7 | 422 |
8 | 1435 |
9 | 4840 |
10 | 17338 |
11 | 62435 |
12 | 225190 |
13 | 837159 |
14 | 3126319 |
15 | 11765631 |
16 | 44783683 |
17 | 171773846 |
18 | 664157911 |
19 | 2575562439 |
20 | 10077583703 |
21 | 39670893129 |
22 | 156317183566 |
23 | 620651825974 |
24 | 2475390947605 |
25 | 9886472711813 |
26 | 39689896106424 |
27 | 159948432742012 |
28 | 645894452400153 |
29 | 2616112922938863 |
[1,1,2,5,14,42,127,422,1435,4840,17338,62435, 225190,837159,3126319,11765631,44783683,171773846, 664157911,2575562439,10077583703,39670893129, 156317183566,620651825974,2475390947605, 9886472711813,39689896106424,159948432742012, 645894452400153,2616112922938863] |