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A252904 as a simple table

na(n)
1384
22793
32793
419320
530453
619320
7139968
8306680
9306680
10139968
11997740
123255537
134385530
143255537
15997740
167214139
1733858062
1866702186
1966702186
2033858062
217214139
2251847038
23357165303
24990142582
251470299799
26990142582

[384,2793,2793,19320,30453,19320,139968,306680,
 306680,139968,997740,3255537,4385530,3255537,
 997740,7214139,33858062,66702186,66702186,
 33858062,7214139,51847038,357165303,990142582,
 1470299799,990142582]