n | a(n) |
---|---|
9 | 1 |
10 | 7 |
11 | 27 |
12 | 82 |
13 | 221 |
14 | 553 |
15 | 1323 |
16 | 3078 |
17 | 7019 |
18 | 15765 |
19 | 34992 |
20 | 76922 |
21 | 167697 |
22 | 363020 |
23 | 780937 |
24 | 1670786 |
25 | 3557060 |
26 | 7539856 |
27 | 15918972 |
28 | 33490067 |
29 | 70226358 |
30 | 146822144 |
31 | 306121101 |
32 | 636648253 |
33 | 1320964417 |
34 | 2734901341 |
35 | 5650875038 |
36 | 11653922283 |
37 | 23991828701 |
38 | 49310264440 |
[1,7,27,82,221,553,1323,3078,7019,15765,34992, 76922,167697,363020,780937,1670786,3557060, 7539856,15918972,33490067,70226358,146822144, 306121101,636648253,1320964417,2734901341, 5650875038,11653922283,23991828701,49310264440] |