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A038397 as a simple table

na(n)
11
241
3941
416941
52516941
6362516941
749362516941
86449362516941
9816449362516941
10100816449362516941
11121100816449362516941
12144121100816449362516941
13169144121100816449362516941
14196169144121100816449362516941
15225196169144121100816449362516941

[1,41,941,16941,2516941,362516941,49362516941,
 6449362516941,816449362516941,100816449362516941,
 121100816449362516941,144121100816449362516941,
 169144121100816449362516941,
 196169144121100816449362516941,
 225196169144121100816449362516941]