n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 3 |
4 | 6 |
5 | 9 |
6 | 20 |
7 | 31 |
8 | 67 |
9 | 115 |
10 | 238 |
11 | 406 |
12 | 880 |
13 | 1494 |
14 | 3118 |
15 | 5568 |
16 | 11408 |
17 | 20092 |
18 | 41938 |
19 | 73687 |
20 | 151529 |
21 | 272359 |
22 | 552611 |
23 | 987277 |
24 | 2033173 |
25 | 3617167 |
26 | 7371745 |
27 | 13318869 |
28 | 26991289 |
29 | 48496985 |
30 | 99264686 |
31 | 177917588 |
32 | 362349258 |
33 | 655925568 |
34 | 1331038563 |
35 | 2401097768 |
36 | 4913906801 |
37 | 8844673793 |
38 | 18046697901 |
39 | 32720071992 |
40 | 66666578597 |
[1,1,2,3,6,9,20,31,67,115,238,406,880,1494,3118, 5568,11408,20092,41938,73687,151529,272359,552611, 987277,2033173,3617167,7371745,13318869,26991289, 48496985,99264686,177917588,362349258,655925568, 1331038563,2401097768,4913906801,8844673793, 18046697901,32720071992,66666578597] |