n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 42 |
3 | 203 |
4 | 882 |
5 | 3486 |
6 | 12880 |
7 | 44885 |
8 | 149170 |
9 | 475587 |
10 | 1462993 |
11 | 4359474 |
12 | 12628091 |
13 | 35656446 |
14 | 98372109 |
15 | 265701212 |
16 | 703800790 |
17 | 1830960824 |
18 | 4684293222 |
19 | 11798774953 |
20 | 29288385021 |
21 | 71714795158 |
22 | 173351031721 |
23 | 413964243476 |
24 | 977243358574 |
25 | 2281942600035 |
26 | 5273570826594 |
[1,7,42,203,882,3486,12880,44885,149170,475587, 1462993,4359474,12628091,35656446,98372109, 265701212,703800790,1830960824,4684293222, 11798774953,29288385021,71714795158,173351031721, 413964243476,977243358574,2281942600035, 5273570826594] |