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A234980 as a simple table

na(n)
19962574
25681668040
32917193420904
41752801119273172
51047618966093964184
6640221005793748734732
7392106856447778173931430
8241255735354103379348718614
9148645515226386040165683644524

[9962574,5681668040,2917193420904,
 1752801119273172,1047618966093964184,
 640221005793748734732,392106856447778173931430,
 241255735354103379348718614,
 148645515226386040165683644524]