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A078503 as a simple table

na(n)
11
22
31
46
50
615
70
815
90
10210
110
12495
130
1428
151
1612870
170
1818564
190
20495
210
22646646
230
24125970
250
2618564
270
2830421755
290
305852925
310
324845
330
34735471
350
361251677700
370
38134596
390
4062852101650
410
4211058116888
430
4410626
450
467890371113950
470

[1,2,1,6,0,15,0,15,0,210,0,495,0,28,1,12870,0,
 18564,0,495,0,646646,0,125970,0,18564,0,30421755,
 0,5852925,0,4845,0,735471,0,1251677700,0,134596,0,
 62852101650,0,11058116888,0,10626,0,7890371113950,
 0]