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A175809 n-th term is number of shortest common superstrings of the binary representations of all natural numbers from 1 to n. 0
1, 1, 1, 1, 2, 2, 2, 2, 6, 4, 6, 4, 16, 16, 16, 16, 84, 56, 120, 108 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Table of n, a(n) for n=1..20.

EXAMPLE

a(5)=2 because there are 2 shortest common superstrings of 1,10,11,100,101; they are 110100 and 101100.

CROSSREFS

Sequence in context: A103222 A319100 A304794 * A061033 A075094 A238413

Adjacent sequences:  A175806 A175807 A175808 * A175810 A175811 A175812

KEYWORD

nonn,base

AUTHOR

Vladimir Reshetnikov, Sep 08 2010

STATUS

approved

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Last modified July 26 20:29 EDT 2021. Contains 346295 sequences. (Running on oeis4.)