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A189738 as a simple table

na(n)
13
24
324
488
5360
61432
75736
822936
991752
10367000
111468008
125872024
1323488104
1493952408
15375809640
161503238552
176012954216
1824051816856
1996207267432
20384829069720
211539316278888
226157265115544
2324629060462184
2498516241848728
25394064967394920

[3,4,24,88,360,1432,5736,22936,91752,367000,
 1468008,5872024,23488104,93952408,375809640,
 1503238552,6012954216,24051816856,96207267432,
 384829069720,1539316278888,6157265115544,
 24629060462184,98516241848728,394064967394920]