n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 4 |
4 | 12 |
5 | 30 |
6 | 69 |
7 | 150 |
8 | 316 |
9 | 652 |
10 | 1329 |
11 | 2688 |
12 | 5412 |
13 | 10866 |
14 | 21781 |
15 | 43618 |
16 | 87300 |
17 | 174672 |
18 | 349425 |
19 | 698940 |
20 | 1397980 |
21 | 2796070 |
22 | 5592261 |
23 | 11184654 |
24 | 22369452 |
25 | 44739060 |
26 | 89478289 |
27 | 178956760 |
28 | 357913716 |
29 | 715827642 |
30 | 1431655509 |
31 | 2863311258 |
32 | 5726622772 |
[0,0,1,4,12,30,69,150,316,652,1329,2688,5412, 10866,21781,43618,87300,174672,349425,698940, 1397980,2796070,5592261,11184654,22369452, 44739060,89478289,178956760,357913716,715827642, 1431655509,2863311258,5726622772] |