n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 14 |
4 | 42 |
5 | 140 |
6 | 480 |
7 | 1694 |
8 | 6160 |
9 | 22768 |
10 | 86119 |
11 | 329819 |
12 | 1276827 |
13 | 5009624 |
14 | 19807663 |
15 | 79034687 |
16 | 317771172 |
17 | 1284909978 |
18 | 5231953571 |
19 | 21409625876 |
20 | 88032238475 |
21 | 363768052841 |
22 | 1508700015910 |
23 | 6282877542186 |
24 | 26257507524764 |
25 | 110071406730840 |
26 | 462949380985458 |
27 | 1952358638292573 |
28 | 8255507414702459 |
[1,2,5,14,42,140,480,1694,6160,22768,86119,329819, 1276827,5009624,19807663,79034687,317771172, 1284909978,5231953571,21409625876,88032238475, 363768052841,1508700015910,6282877542186, 26257507524764,110071406730840,462949380985458, 1952358638292573,8255507414702459] |