n | a(n) |
---|---|
0 | 1 |
1 | 242 |
2 | 9922 |
3 | 170610 |
4 | 1690370 |
5 | 11414898 |
6 | 58227906 |
7 | 240089586 |
8 | 838478850 |
9 | 2564399090 |
10 | 7039035586 |
11 | 17664712562 |
12 | 41110086402 |
13 | 89719625842 |
14 | 185263467202 |
15 | 364571790066 |
16 | 687750033410 |
17 | 1249849661170 |
18 | 2197075886786 |
19 | 3748850875506 |
20 | 6227320558338 |
21 | 10096197409650 |
[1,242,9922,170610,1690370,11414898,58227906, 240089586,838478850,2564399090,7039035586, 17664712562,41110086402,89719625842,185263467202, 364571790066,687750033410,1249849661170, 2197075886786,3748850875506,6227320558338, 10096197409650] |