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A369921 as a simple table

na(n)
00
10
22
318
4204
52940
656670
71471806
852067512
92520298584
10167850357210
1115435027907530
121967345286257604
13348527628228821652
1486057693880611800438
1529677160119074814383030
1614321851348104417100842480

[0,0,2,18,204,2940,56670,1471806,52067512,
 2520298584,167850357210,15435027907530,
 1967345286257604,348527628228821652,
 86057693880611800438,29677160119074814383030,
 14321851348104417100842480]