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A304404 as a simple table

na(n)
11
21
31
41
51
66
71
81
91
1010
111
1212
131
1414
1515
161
171
1818
191
2020
2121
2222
231
2424
251
2626
271
2828
291
30900
311
321
3333
3434
3535
3636
371
3838
3939
4040
411
421764
431
4444
4545
4646
471
4848
491
5050
5151
5252
531
5454
5555
5656
5757
5858
591
603600
611
6262
6363
641
6565
664356
671
6868
6969
704900
711
7272
731
7474
7575

[1,1,1,1,1,6,1,1,1,10,1,12,1,14,15,1,1,18,1,20,21,
 22,1,24,1,26,1,28,1,900,1,1,33,34,35,36,1,38,39,
 40,1,1764,1,44,45,46,1,48,1,50,51,52,1,54,55,56,
 57,58,1,3600,1,62,63,1,65,4356,1,68,69,4900,1,72,
 1,74,75]