n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 7 |
3 | 18 |
4 | 46 |
5 | 117 |
6 | 298 |
7 | 759 |
8 | 1933 |
9 | 4923 |
10 | 12538 |
11 | 31932 |
12 | 81325 |
13 | 207120 |
14 | 527497 |
15 | 1343439 |
16 | 3421495 |
17 | 8713926 |
18 | 22192786 |
19 | 56520993 |
20 | 143948698 |
21 | 366611175 |
22 | 933692041 |
23 | 2377943955 |
24 | 6056191126 |
25 | 15424018248 |
26 | 39282171577 |
27 | 100044552528 |
28 | 254795294881 |
29 | 648917313867 |
[1,3,7,18,46,117,298,759,1933,4923,12538,31932, 81325,207120,527497,1343439,3421495,8713926, 22192786,56520993,143948698,366611175,933692041, 2377943955,6056191126,15424018248,39282171577, 100044552528,254795294881,648917313867] |