n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 240 |
4 | 1782 |
5 | 9072 |
6 | 59328 |
7 | 216432 |
8 | 810000 |
9 | 2059152 |
10 | 6080832 |
11 | 12349584 |
12 | 31045596 |
13 | 57036960 |
14 | 122715648 |
15 | 204193872 |
16 | 418822650 |
17 | 622067040 |
18 | 1193611392 |
19 | 1734272208 |
20 | 3043596384 |
21 | 4217152080 |
22 | 7354100160 |
23 | 9446435136 |
24 | 15901091892 |
25 | 20507712192 |
26 | 32268036096 |
27 | 40493364288 |
28 | 64454759856 |
[1,0,0,240,1782,9072,59328,216432,810000,2059152, 6080832,12349584,31045596,57036960,122715648, 204193872,418822650,622067040,1193611392, 1734272208,3043596384,4217152080,7354100160, 9446435136,15901091892,20507712192,32268036096, 40493364288,64454759856] |