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A253740 as a simple table

na(n)
1218
2720
3720
42212
51888
62212
76932
84100
94100
106932
1122236
129876
137216
149876
1522236
1670372
1725012
1817608
1917608
2025012
2170372
22222820
2360296
2444332
2554688
2644332
2760296
28222820
29706884
30148328
31102616
32143080
33143080
34102616
35148328

[218,720,720,2212,1888,2212,6932,4100,4100,6932,
 22236,9876,7216,9876,22236,70372,25012,17608,
 17608,25012,70372,222820,60296,44332,54688,44332,
 60296,222820,706884,148328,102616,143080,143080,
 102616,148328]