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A157401 as a simple table

na(n)
11
21
31
41
51
63
73
81
99
1012
1115
121
1325
1460
1575
16105
171
1875
19330
20450
21630
22945
231
24231
251680
263675
274410
286615
2910395
301
31763
329408
3330975
3441160
3552920
3683160
37135135
381
392619
4056952
41233415
42489510
43555660
44748440
451216215

[1,1,1,1,1,3,3,1,9,12,15,1,25,60,75,105,1,75,330,
 450,630,945,1,231,1680,3675,4410,6615,10395,1,763,
 9408,30975,41160,52920,83160,135135,1,2619,56952,
 233415,489510,555660,748440,1216215]