n | a(n) |
---|---|
0 | 5 |
1 | 20 |
2 | 71 |
3 | 207 |
4 | 556 |
5 | 1390 |
6 | 3310 |
7 | 7576 |
8 | 16807 |
9 | 36331 |
10 | 76850 |
11 | 159575 |
12 | 326092 |
13 | 657124 |
14 | 1307992 |
15 | 2575180 |
16 | 5020570 |
17 | 9702043 |
18 | 18599391 |
19 | 35397328 |
20 | 66918850 |
21 | 125738650 |
22 | 234930380 |
23 | 436660010 |
24 | 807690455 |
25 | 1487269940 |
26 | 2727149885 |
27 | 4981046893 |
[5,20,71,207,556,1390,3310,7576,16807,36331,76850, 159575,326092,657124,1307992,2575180,5020570, 9702043,18599391,35397328,66918850,125738650, 234930380,436660010,807690455,1487269940, 2727149885,4981046893] |