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A247644 as a simple table

na(n)
11
21
31
41
51
62
74
82
91
101
113
129
139
149
153
161
171
184
1916
2024
2136
2224
2316
244
251
261
275
2825
2950
30100
31100
32100
3350
3425
355
361
371
386
3936
4090
41225
42300
43400
44300
45225
4690
4736
486
491
501
517
5249
53147
54441
55735
561225
571225
581225
59735
60441
61147
6249
637
641
651
668
6764
68224
69784
701568
713136
723920
734900
743920
753136
761568
77784
78224
7964
808
811

[1,1,1,1,1,2,4,2,1,1,3,9,9,9,3,1,1,4,16,24,36,24,
 16,4,1,1,5,25,50,100,100,100,50,25,5,1,1,6,36,90,
 225,300,400,300,225,90,36,6,1,1,7,49,147,441,735,
 1225,1225,1225,735,441,147,49,7,1,1,8,64,224,784,
 1568,3136,3920,4900,3920,3136,1568,784,224,64,8,1]