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A264942 as a simple table

na(n)
10
22
3332
4184740
5196389904
6368696849320
71122409297218768
85194172319787113488
934756519036284839519360

[0,2,332,184740,196389904,368696849320,
 1122409297218768,5194172319787113488,
 34756519036284839519360]