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A017728 as a simple table

na(n)
641
6565
662145
6747905
68814385
6911238513
70131115985
711329890705
7211969016345
7397082021465
74718406958841
754898229264825
7631022118677225
77183746395242025
781023729916348425
795391644226101705
8026958221130508525

[1,65,2145,47905,814385,11238513,131115985,
 1329890705,11969016345,97082021465,718406958841,
 4898229264825,31022118677225,183746395242025,
 1023729916348425,5391644226101705,
 26958221130508525]