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A264124 as a simple table

na(n)
18
2200
35733
4108045
51995525
639592980
7791859600
815730470000
9311564912400
106168985265520
11122179379691600
122420106837104880
1347937671793562320
14949542664230745200
1518808314998504608080
16372550422991797293040

[8,200,5733,108045,1995525,39592980,791859600,
 15730470000,311564912400,6168985265520,
 122179379691600,2420106837104880,
 47937671793562320,949542664230745200,
 18808314998504608080,372550422991797293040]