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A220375 as a simple table

na(n)
11
21
31
42
56
62
74
823
923
104
117
1294
13236
1494
157
1612
17380
182095
192095
20380
2112
2221
231494
2418296
2539780
2618296
271494
2821
2937
305939
31154562
32722126
33722126
34154562
355939
3637
3765
3823398
391280878
4012480964
4126483660
4212480964
431280878
4423398
4565
46114
4792317

[1,1,1,2,6,2,4,23,23,4,7,94,236,94,7,12,380,2095,
 2095,380,12,21,1494,18296,39780,18296,1494,21,37,
 5939,154562,722126,722126,154562,5939,37,65,23398,
 1280878,12480964,26483660,12480964,1280878,23398,
 65,114,92317]