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A320444 as a simple table

na(n)
01
11
21
34
417
5141
61297
717683
8262145
94861405
10100112001
112371816701
1261917364225
131796326510993
1456693912375297
151947734359001551
1672059082110369793
172863257607266475419
18121439531096594251777
195480987217944109919765
20262144000000000000000001

[1,1,1,4,17,141,1297,17683,262145,4861405,
 100112001,2371816701,61917364225,1796326510993,
 56693912375297,1947734359001551,72059082110369793,
 2863257607266475419,121439531096594251777,
 5480987217944109919765,262144000000000000000001]