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A027481 as a simple table

na(n)
323
4215
51035
63535
79730
823058
948930
1095370
11173745
12299585
13493493
14782145
151199380
161787380
172597940
183693828
195150235
207056315
219516815
2212653795
2316608438
2421542950
2527642550
2635117550
2744205525
2855173573
2968320665
3083980085
31102521960
32124355880

[23,215,1035,3535,9730,23058,48930,95370,173745,
 299585,493493,782145,1199380,1787380,2597940,
 3693828,5150235,7056315,9516815,12653795,16608438,
 21542950,27642550,35117550,44205525,55173573,
 68320665,83980085,102521960,124355880]