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A321810 as a simple table

na(n)
11
21
3730
41
515626
6730
7117650
81
9532171
1015626
111771562
12730
134826810
14117650
1511406980
161
1724137570
18532171
1947045882
2015626
2185884500
221771562
23148035890
24730
25244156251
264826810
27387952660
28117650
29594823322
3011406980
31887503682

[1,1,730,1,15626,730,117650,1,532171,15626,
 1771562,730,4826810,117650,11406980,1,24137570,
 532171,47045882,15626,85884500,1771562,148035890,
 730,244156251,4826810,387952660,117650,594823322,
 11406980,887503682]