n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 46 |
3 | 175 |
4 | 551 |
5 | 1517 |
6 | 3775 |
7 | 8677 |
8 | 18703 |
9 | 38223 |
10 | 74682 |
11 | 140403 |
12 | 255280 |
13 | 450734 |
14 | 775440 |
15 | 1303509 |
16 | 2146040 |
17 | 3467254 |
18 | 5506807 |
19 | 8610369 |
20 | 13271183 |
21 | 20186110 |
22 | 30330668 |
23 | 45058828 |
24 | 66234905 |
25 | 96406840 |
26 | 139032605 |
27 | 198774473 |
28 | 281879613 |
29 | 396670035 |
30 | 554170514 |
31 | 768909964 |
[1,9,46,175,551,1517,3775,8677,18703,38223,74682, 140403,255280,450734,775440,1303509,2146040, 3467254,5506807,8610369,13271183,20186110, 30330668,45058828,66234905,96406840,139032605, 198774473,281879613,396670035,554170514,768909964] |