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A203873 as a simple table

na(n)
1487
223815
31166887
457177415
52801693287
6137282971015
76726865579687
8329616413404615
916151204256826087
10791409008584478215
1138779041420639432487
121900173029611332191815
1393108478450955277398887

[487,23815,1166887,57177415,2801693287,
 137282971015,6726865579687,329616413404615,
 16151204256826087,791409008584478215,
 38779041420639432487,1900173029611332191815,
 93108478450955277398887]