n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | 2 |
3 | 4 |
4 | 4 |
5 | 9 |
6 | 16 |
7 | 31 |
8 | 56 |
9 | 109 |
10 | 209 |
11 | 403 |
12 | 773 |
13 | 1491 |
14 | 2873 |
15 | 5538 |
16 | 10671 |
17 | 20570 |
18 | 39649 |
19 | 76426 |
20 | 147312 |
21 | 283954 |
22 | 547338 |
23 | 1055028 |
24 | 2033628 |
25 | 3919945 |
26 | 7555936 |
27 | 14564535 |
28 | 28074040 |
29 | 54114453 |
30 | 104308961 |
31 | 201061987 |
32 | 387559437 |
33 | 747044835 |
34 | 1439975217 |
[0,2,2,4,4,9,16,31,56,109,209,403,773,1491,2873, 5538,10671,20570,39649,76426,147312,283954,547338, 1055028,2033628,3919945,7555936,14564535,28074040, 54114453,104308961,201061987,387559437,747044835, 1439975217] |