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A232940 as a simple table

na(n)
1192
2554
37212
479810
5932576
610700160
7123516664
81422959686
916403819514
10189062126148
112179181824046
1225117338039572
13289505052484974
143336861029886146
1538460966820329646
16443304625973863734

[192,554,7212,79810,932576,10700160,123516664,
 1422959686,16403819514,189062126148,2179181824046,
 25117338039572,289505052484974,3336861029886146,
 38460966820329646,443304625973863734]