n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 5 |
4 | 18 |
5 | 25 |
6 | 84 |
7 | 124 |
8 | 398 |
9 | 612 |
10 | 1901 |
11 | 3012 |
12 | 9126 |
13 | 14800 |
14 | 43968 |
15 | 72658 |
16 | 212417 |
17 | 356544 |
18 | 1028520 |
19 | 1749344 |
20 | 4989477 |
21 | 8583258 |
22 | 24244139 |
23 | 42121079 |
24 | 117973702 |
25 | 206754379 |
26 | 574811040 |
27 | 1015179978 |
28 | 2803969443 |
29 | 4986329826 |
[1,1,4,5,18,25,84,124,398,612,1901,3012,9126, 14800,43968,72658,212417,356544,1028520,1749344, 4989477,8583258,24244139,42121079,117973702, 206754379,574811040,1015179978,2803969443, 4986329826] |