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A264531 as a simple table

na(n)
11
216
389
4824
513144
6119810
71270837
814103392
9139422769
101489609039
1115098856568
12157378841499
131607018839580
1416616194539942
15170301735785373
161753220036739752
1718005670271857409
18185034610687175581

[1,16,89,824,13144,119810,1270837,14103392,
 139422769,1489609039,15098856568,157378841499,
 1607018839580,16616194539942,170301735785373,
 1753220036739752,18005670271857409,
 185034610687175581]