n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 10 |
4 | 10 |
5 | 10 |
6 | 80 |
7 | 150 |
8 | 220 |
9 | 710 |
10 | 1620 |
11 | 2950 |
12 | 7010 |
13 | 16110 |
14 | 32560 |
15 | 70682 |
16 | 156810 |
17 | 329290 |
18 | 698540 |
19 | 1507110 |
20 | 3189742 |
21 | 6725150 |
22 | 14279520 |
23 | 30141730 |
24 | 63335960 |
25 | 133297362 |
26 | 279996460 |
27 | 586364410 |
28 | 1227337710 |
29 | 2566307410 |
30 | 5355970048 |
31 | 11166535430 |
32 | 23259949980 |
33 | 48389451510 |
[1,0,0,10,10,10,80,150,220,710,1620,2950,7010, 16110,32560,70682,156810,329290,698540,1507110, 3189742,6725150,14279520,30141730,63335960, 133297362,279996460,586364410,1227337710, 2566307410,5355970048,11166535430,23259949980, 48389451510] |