n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 8 |
3 | 21 |
4 | 54 |
5 | 140 |
6 | 362 |
7 | 937 |
8 | 2425 |
9 | 6275 |
10 | 16239 |
11 | 42024 |
12 | 108751 |
13 | 281430 |
14 | 728295 |
15 | 1884709 |
16 | 4877320 |
17 | 12621710 |
18 | 32662931 |
19 | 84526348 |
20 | 218740428 |
21 | 566064618 |
22 | 1464883079 |
23 | 3790878933 |
24 | 9810177543 |
25 | 25387142435 |
26 | 65697791726 |
27 | 170015189725 |
28 | 439971633412 |
29 | 1138574962157 |
[1,3,8,21,54,140,362,937,2425,6275,16239,42024, 108751,281430,728295,1884709,4877320,12621710, 32662931,84526348,218740428,566064618,1464883079, 3790878933,9810177543,25387142435,65697791726, 170015189725,439971633412,1138574962157] |