n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 36 |
4 | 492 |
5 | 3608 |
6 | 18828 |
7 | 74760 |
8 | 250352 |
9 | 717984 |
10 | 1866558 |
11 | 4365580 |
12 | 9635472 |
13 | 19639032 |
14 | 38559416 |
15 | 71222616 |
16 | 128258496 |
17 | 219619968 |
18 | 370366101 |
19 | 597550068 |
20 | 955638824 |
21 | 1471571136 |
22 | 2253173892 |
23 | 3335433368 |
24 | 4932972864 |
25 | 7064391840 |
26 | 10133162774 |
27 | 14128072488 |
28 | 19743952032 |
29 | 26864847352 |
[0,0,1,36,492,3608,18828,74760,250352,717984, 1866558,4365580,9635472,19639032,38559416, 71222616,128258496,219619968,370366101,597550068, 955638824,1471571136,2253173892,3335433368, 4932972864,7064391840,10133162774,14128072488, 19743952032,26864847352] |