n | a(n) |
---|---|
1 | 4 |
2 | 14 |
3 | 46 |
4 | 130 |
5 | 332 |
6 | 830 |
7 | 2054 |
8 | 5108 |
9 | 12790 |
10 | 32146 |
11 | 80942 |
12 | 203898 |
13 | 513498 |
14 | 1292934 |
15 | 3254868 |
16 | 8193210 |
17 | 20623908 |
18 | 51914372 |
19 | 130680214 |
20 | 328953874 |
21 | 828059138 |
22 | 2084434524 |
23 | 5247046924 |
24 | 13208134738 |
25 | 33248182980 |
26 | 83693989466 |
27 | 210678694852 |
[4,14,46,130,332,830,2054,5108,12790,32146,80942, 203898,513498,1292934,3254868,8193210,20623908, 51914372,130680214,328953874,828059138,2084434524, 5247046924,13208134738,33248182980,83693989466, 210678694852] |