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A184139 as a simple table

na(n)
15
225
3130
4650
52942
611819
742305
8136564
9402910
101099694
112805530
126748066
1315412437
1433626131
1570430778
16142218719
17277853339
18526833235
19972034814
201749218190
213076360192
225297051455
238943742419
2414828643610
2524172697276

[5,25,130,650,2942,11819,42305,136564,402910,
 1099694,2805530,6748066,15412437,33626131,
 70430778,142218719,277853339,526833235,972034814,
 1749218190,3076360192,5297051455,8943742419,
 14828643610,24172697276]