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A252491 as a simple table

na(n)
11
2101
31001001
41000100010001
5100001000010000100001
61000001000001000001000001000001
71000000100000010000001000000100000010000001
8100000001000000010000000100000001000000010000000100000001
91000000001000000001000000001000000001000000001000000001000000001

[1,101,1001001,1000100010001,
 100001000010000100001,
 1000001000001000001000001000001,
 1000000100000010000001000000100000010000001,
 10000000100000001000000010000000100000001000000010\
 0000001,
 10000000010000000010000000010000000010000000010000\
 00001000000001]