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A305242 as a simple table

na(n)
116
264
386
4273
51134
63288
711731
839986
9136448
10468584
111601600
125492380
1318813625
1464449531
15220814816
16756519295
172591868086
188879795487
1930422648705
20104229316206
21357094000366
221223419607435
234191489089288
2414360224506528

[16,64,86,273,1134,3288,11731,39986,136448,468584,
 1601600,5492380,18813625,64449531,220814816,
 756519295,2591868086,8879795487,30422648705,
 104229316206,357094000366,1223419607435,
 4191489089288,14360224506528]