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A049412 as a simple table

na(n)
11
27
385
41465
532677
6894103
728977817
81085272945
946112305897
102191384887175
11115164935076445
126631403822046697
13415179375712149517
1428079663069162365207
152040146099677929685345
16158473205735310372796897

[1,7,85,1465,32677,894103,28977817,1085272945,
 46112305897,2191384887175,115164935076445,
 6631403822046697,415179375712149517,
 28079663069162365207,2040146099677929685345,
 158473205735310372796897]