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A260582 as a simple table

na(n)
31
472
52438
648965
7727982
89002669
998831244
101001534339
119604385112
1288600727292
13795108048465
146995452987296
1560672964077315
16520801298224219
174436874672072459
1837592602817393616
19317246106027904761
202669508900483670024
2122415690107381454687

[1,72,2438,48965,727982,9002669,98831244,
 1001534339,9604385112,88600727292,795108048465,
 6995452987296,60672964077315,520801298224219,
 4436874672072459,37592602817393616,
 317246106027904761,2669508900483670024,
 22415690107381454687]