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A267146 as a simple table

na(n)
01
10
210101
310100
4100010001
510001000
61010001000101
71001000100100
810000000100000001
91111100011111000
10101010001010100010101
11101001001010010010100
121000100000001000000010001
13100011111000111110001000
1410100010100010101000101000101

[1,0,10101,10100,100010001,10001000,1010001000101,
 1001000100100,10000000100000001,1111100011111000,
 101010001010100010101,101001001010010010100,
 1000100000001000000010001,
 100011111000111110001000,
 10100010100010101000101000101]