n | a(n) |
---|---|
0 | -2 |
1 | -1 |
2 | 1 |
3 | 6 |
4 | 19 |
5 | 53 |
6 | 142 |
7 | 375 |
8 | 985 |
9 | 2582 |
10 | 6763 |
11 | 17709 |
12 | 46366 |
13 | 121391 |
14 | 317809 |
15 | 832038 |
16 | 2178307 |
17 | 5702885 |
18 | 14930350 |
19 | 39088167 |
20 | 102334153 |
21 | 267914294 |
22 | 701408731 |
23 | 1836311901 |
24 | 4807526974 |
25 | 12586269023 |
26 | 32951280097 |
27 | 86267571270 |
28 | 225851433715 |
29 | 591286729877 |
[-2,-1,1,6,19,53,142,375,985,2582,6763,17709, 46366,121391,317809,832038,2178307,5702885, 14930350,39088167,102334153,267914294,701408731, 1836311901,4807526974,12586269023,32951280097, 86267571270,225851433715,591286729877] |