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A039836 Maximal number m of integers s(i), with 1<=s(1)<s(2)<...<s(m)<=n, such that all sums s(i)+s(j), i<>j, are distinct. 0
1, 2, 3, 3, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

REFERENCES

R. K. Guy, Unsolved Problems in Number Theory, Section C9.

CROSSREFS

Sequence in context: A163515 A072649 A105195 * A083398 A061420 A003057

Adjacent sequences:  A039833 A039834 A039835 * A039837 A039838 A039839

KEYWORD

nonn

AUTHOR

John W. Layman (layman(AT)math.vt.edu)

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Last modified February 17 03:30 EST 2012. Contains 205978 sequences.