a(n) = A007088(A122242(n)).
101010, 11110000, 1110010100, 111010100100, 11101001110000
2 seqfan posts
Sun May 29 19:25:46 CEST 2011 [seqfan] Re: Long chains
Fri May 27 08:15:20 CEST 2011 [seqfan] Long chains
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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