n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 4 |
4 | 11 |
5 | 8 |
6 | 44 |
7 | 144 |
8 | 352 |
9 | 692 |
10 | 2488 |
11 | 6476 |
12 | 17095 |
13 | 43308 |
14 | 131488 |
15 | 340000 |
16 | 939959 |
17 | 2520616 |
18 | 7194232 |
19 | 19142160 |
20 | 53471296 |
21 | 145636612 |
22 | 407743540 |
23 | 1107902624 |
24 | 3092203004 |
25 | 8488056840 |
26 | 23644607144 |
27 | 64986279340 |
28 | 181063135999 |
29 | 499746197884 |
[0,0,4,11,8,44,144,352,692,2488,6476,17095,43308, 131488,340000,939959,2520616,7194232,19142160, 53471296,145636612,407743540,1107902624, 3092203004,8488056840,23644607144,64986279340, 181063135999,499746197884] |