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A174515 as a simple table

na(n)
01
125
2397
35125
458813
5626725
66356749
762315125
8596370205
95610245125
1052128987181
11480061573525
124392455087677
1340002549209125
14363080219023693
153287474035532725
1629714233445499229
17268240649382317125

[1,25,397,5125,58813,626725,6356749,62315125,
 596370205,5610245125,52128987181,480061573525,
 4392455087677,40002549209125,363080219023693,
 3287474035532725,29714233445499229,
 268240649382317125]