n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 9 |
4 | 22 |
5 | 46 |
6 | 102 |
7 | 206 |
8 | 427 |
9 | 841 |
10 | 1658 |
11 | 3173 |
12 | 6038 |
13 | 11251 |
14 | 20807 |
15 | 37907 |
16 | 68493 |
17 | 122338 |
18 | 216819 |
19 | 380637 |
20 | 663417 |
21 | 1147033 |
22 | 1969961 |
23 | 3359677 |
24 | 5694592 |
25 | 9592063 |
26 | 16065593 |
27 | 26756430 |
28 | 44328414 |
[1,1,4,9,22,46,102,206,427,841,1658,3173,6038, 11251,20807,37907,68493,122338,216819,380637, 663417,1147033,1969961,3359677,5694592,9592063, 16065593,26756430,44328414] |