n | a(n) |
---|---|
1 | 7 |
2 | 8 |
3 | 15 |
4 | 20 |
5 | 32 |
6 | 56 |
7 | 111 |
8 | 230 |
9 | 501 |
10 | 1108 |
11 | 2494 |
12 | 5646 |
13 | 12867 |
14 | 29400 |
15 | 67363 |
16 | 154548 |
17 | 355012 |
18 | 816044 |
19 | 1876871 |
20 | 4318210 |
21 | 9937849 |
22 | 22874740 |
23 | 52659602 |
24 | 121237426 |
25 | 279141179 |
26 | 642732036 |
27 | 1479959127 |
28 | 3407837396 |
29 | 7847200520 |
30 | 18069880640 |
[7,8,15,20,32,56,111,230,501,1108,2494,5646,12867, 29400,67363,154548,355012,816044,1876871,4318210, 9937849,22874740,52659602,121237426,279141179, 642732036,1479959127,3407837396,7847200520, 18069880640] |