n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 4 |
4 | 5 |
5 | 20 |
6 | 30 |
7 | 48 |
8 | 74 |
9 | 265 |
10 | 818 |
11 | 897 |
12 | 2027 |
13 | 5107 |
14 | 6846 |
15 | 13049 |
16 | 236586 |
17 | 364437 |
18 | 643493 |
19 | 1144424 |
20 | 7294777 |
21 | 49484843 |
22 | 51161394 |
23 | 76008087 |
24 | 202870914 |
25 | 391981014 |
26 | 11731070977 |
27 | 79069971960 |
28 | 415100034571 |
29 | 1212266245583 |
[1,1,4,5,20,30,48,74,265,818,897,2027,5107,6846, 13049,236586,364437,643493,1144424,7294777, 49484843,51161394,76008087,202870914,391981014, 11731070977,79069971960,415100034571, 1212266245583] |