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A154148 as a simple table

na(n)
15
27
340
450
5237
6295
71384
81722
98069
1010039
1147032
1258514
13274125
14341047
151597720
161987770
179312197
1811585575
1954275464
2067525682

[5,7,40,50,237,295,1384,1722,8069,10039,47032,
 58514,274125,341047,1597720,1987770,9312197,
 11585575,54275464,67525682]