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A001387 as a simple table

na(n)
11
211
3101
4111011
511110101
6100110111011
7111001011011110101
8111100111010110100110111011
9100110011110111010110111001011011110101
101110010110010011011110111010110111100111010110100110111011

[1,11,101,111011,11110101,100110111011,
 111001011011110101,111100111010110100110111011,
 100110011110111010110111001011011110101,
 11100101100100110111101110101101111001110101101001\
 10111011]