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A013623 as a simple table

na(n)
01
12
27
34
428
549
68
784
8294
9343
1016
11224
121176
132744
142401
1532
16560
173920
1813720
1924010
2016807
2164
221344
2311760
2454880
25144060
26201684
27117649
28128
293136
3032928
31192080
32672280
331411788
341647086
35823543
36256
377168
3887808
39614656

[1,2,7,4,28,49,8,84,294,343,16,224,1176,2744,2401,
 32,560,3920,13720,24010,16807,64,1344,11760,54880,
 144060,201684,117649,128,3136,32928,192080,672280,
 1411788,1647086,823543,256,7168,87808,614656]