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A341549 as a simple table

na(n)
13
26
323
450
5131
6294
7687
81530
93419
107502
1116391
1235490
1376467
14163830
15349535
16742730
171572875
183320478
196990519
2014680050
2130758243
2264312646
23134217743
24279620250
25581610171
261207959534
272505397607
285189752130
2910737418259
3022190664342

[3,6,23,50,131,294,687,1530,3419,7502,16391,35490,
 76467,163830,349535,742730,1572875,3320478,
 6990519,14680050,30758243,64312646,134217743,
 279620250,581610171,1207959534,2505397607,
 5189752130,10737418259,22190664342]