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A239424 as a simple table

na(n)
13
26
36
414
518
614
732
880
980
1032
1172
12320
13684
14320
1572
16164
171244
184740
194740
201244
21164
22372
234990
2434728
2560626
2634728
274990
28372
29844
3019560
31247942
32811554
33811554
34247942
3519560
36844
371916
3877220
391823840
4010575232
4121127494
4210575232
431823840

[3,6,6,14,18,14,32,80,80,32,72,320,684,320,72,164,
 1244,4740,4740,1244,164,372,4990,34728,60626,
 34728,4990,372,844,19560,247942,811554,811554,
 247942,19560,844,1916,77220,1823840,10575232,
 21127494,10575232,1823840]