n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 9 |
3 | 54 |
4 | 379 |
5 | 2948 |
6 | 24736 |
7 | 220622 |
8 | 2074775 |
9 | 20491386 |
10 | 212312349 |
11 | 2310232488 |
12 | 26473612772 |
13 | 320735694048 |
14 | 4126350096188 |
15 | 56601987176510 |
16 | 830233489763775 |
17 | 13036492313617494 |
18 | 218958840306428947 |
19 | 3924128327446669670 |
20 | 74779561501535316579 |
21 | 1509296316416028136188 |
[1,2,9,54,379,2948,24736,220622,2074775,20491386, 212312349,2310232488,26473612772,320735694048, 4126350096188,56601987176510,830233489763775, 13036492313617494,218958840306428947, 3924128327446669670,74779561501535316579, 1509296316416028136188] |