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A261569 as a simple table

na(n)
01
15
25
330
430
555
6180
7205
8330
9480
101230
111380
122255
133030
144530
158555
1610680
1715330
1821330
1929730
2039480
2167380
2281505
23116280
24153030
25210930
26270805
27370080
28534330
29675480
30900480
311180380
321544130
331997280
342597280
353304805
364581180
375653080

[1,5,5,30,30,55,180,205,330,480,1230,1380,2255,
 3030,4530,8555,10680,15330,21330,29730,39480,
 67380,81505,116280,153030,210930,270805,370080,
 534330,675480,900480,1180380,1544130,1997280,
 2597280,3304805,4581180,5653080]