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A131293 Concatenate a(n-2) and a(n-1) to get a(n); start with a(0)=0, a(1)=1, delete the leading zero. Also Fib(n)-number of '1's. +0
2
0, 1, 1, 11, 111, 11111, 11111111, 1111111111111, 111111111111111111111, 1111111111111111111111111111111111, 1111111111111111111111111111111111111111111111111111111 (list; graph; listen)
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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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