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A183684 as a simple table

na(n)
196
2528
32688
414144
573344
6382848
71992320
810382976
954072960
10281700992
111467309696
127643513472
1339814841984
14207399103104
151080347897472
165627597738624
1729314404685440
18152700279978624
19795423120883328

[96,528,2688,14144,73344,382848,1992320,10382976,
 54072960,281700992,1467309696,7643513472,
 39814841984,207399103104,1080347897472,
 5627597738624,29314404685440,152700279978624,
 795423120883328]