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A168490 as a simple table

na(n)
01
11
22
36
424
5112
6560
72888
815136
980160
10427968
112300736
1212445440
1367702272
14370205184
152033976960
1611224014336
1762186741248
18345825348608
191929744008192
2010802203119616
2160644473282560
22341383505977344

[1,1,2,6,24,112,560,2888,15136,80160,427968,
 2300736,12445440,67702272,370205184,2033976960,
 11224014336,62186741248,345825348608,
 1929744008192,10802203119616,60644473282560,
 341383505977344]