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A052760型作为一个简单的表

n个a(n)
00
10
20
0
424
5120
6420
71260
83472
99072
1022860
1156100
12134904
13319176
14745108
151719900
163931680
178912352
1820053404
1944825940
2099613960
21220200120
22484441188
231061157900
242315254704
255033163600
2610905189100
2723555209860
2850734299672
29108984793512

[0,0,0,0,24,120,420,1260,3472,9072,22860,56100,134904,319176,745108,1719900,3931680,8912352,20053404,44825940,99613960,220200120,484441188,1061157900,2315254704,5033163600,10905189100,23555209860,50734299672,108984793512]