n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 10 |
4 | 27 |
5 | 102 |
6 | 345 |
7 | 1162 |
8 | 4072 |
9 | 14224 |
10 | 49604 |
11 | 173594 |
12 | 607485 |
13 | 2125150 |
14 | 7436416 |
15 | 26022865 |
16 | 91060814 |
17 | 318652127 |
18 | 1115077417 |
19 | 3902040209 |
20 | 13654599697 |
21 | 47782246634 |
22 | 167206840944 |
23 | 585115414586 |
24 | 2047524354146 |
25 | 7165006769433 |
[1,4,10,27,102,345,1162,4072,14224,49604,173594, 607485,2125150,7436416,26022865,91060814, 318652127,1115077417,3902040209,13654599697, 47782246634,167206840944,585115414586, 2047524354146,7165006769433] |