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 A255745 a(1) = 1; for n > 1, a(n) = 11*10^{A000120(n-1)-1}. 4
 1, 11, 11, 110, 11, 110, 110, 1100, 11, 110, 110, 1100, 110, 1100, 1100, 11000, 11, 110, 110, 1100, 110, 1100, 1100, 11000, 110, 1100, 1100, 11000, 1100, 11000, 11000, 110000, 11, 110, 110, 1100, 110, 1100, 1100, 11000, 110, 1100, 1100, 11000, 1100, 11000, 11000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Also, this is a row of the square array A255740. Partial sums give A255766. Is this also A151787 written in base 2? LINKS EXAMPLE Also, written as an irregular triangle in which the row lengths are the terms of A011782, the sequence begins: 1; 11; 11, 110; 11, 110, 110, 1100; 11, 110, 110, 1100, 110, 1100, 1100, 11000; ... PROG (PARI) a(n) = if (n==1, 1, 11*10^(hammingweight(n-1)-1)); \\ Michel Marcus, Mar 13 2015 CROSSREFS Cf. A000120, A151787, A147582, A151789, A151779, A151791, A151782, A255740, A255741, A255743, A255744, A255766. Sequence in context: A088773 A069588 A088774 * A188548 A290671 A290416 Adjacent sequences:  A255742 A255743 A255744 * A255746 A255747 A255748 KEYWORD nonn AUTHOR Omar E. Pol, Mar 05 2015 EXTENSIONS More terms from Michel Marcus, Mar 13 2015 STATUS approved

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Last modified February 20 17:04 EST 2020. Contains 332080 sequences. (Running on oeis4.)