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A053428 as a simple table

na(n)
01
11
221
341
4461
51281
610501
736121
8246141
9968561
105891381
1125262601
12143090221
13648342241
143510146661
1516476991481
1686679924701
17416219754321
182149818248341
1910474213334761
2053470578301581
21262954844996801

[1,1,21,41,461,1281,10501,36121,246141,968561,
 5891381,25262601,143090221,648342241,3510146661,
 16476991481,86679924701,416219754321,
 2149818248341,10474213334761,53470578301581,
 262954844996801]