n | a(n) |
---|---|
0 | 1 |
1 | 72 |
2 | 2376 |
3 | 47592 |
4 | 646344 |
5 | 6305904 |
6 | 45821160 |
7 | 255215808 |
8 | 1125009864 |
9 | 4097478600 |
10 | 12975540336 |
11 | 37101202848 |
12 | 96867424872 |
13 | 232791251760 |
14 | 526183909056 |
15 | 1128351033648 |
16 | 2286328733640 |
17 | 4451427831312 |
18 | 8386379869896 |
19 | 15130456297056 |
20 | 26613241744752 |
21 | 45684436953024 |
22 | 75935115663264 |
[1,72,2376,47592,646344,6305904,45821160, 255215808,1125009864,4097478600,12975540336, 37101202848,96867424872,232791251760,526183909056, 1128351033648,2286328733640,4451427831312, 8386379869896,15130456297056,26613241744752, 45684436953024,75935115663264] |