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A174889 First column of A174888. 4
1, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Begins to differ from A005171 at n=30. a(n) is either 1 or 0. The value is chosen so that row sums in A174888 are equal to the Mobius function A008683, and row counts are equal to A074206.

LINKS

Table of n, a(n) for n=1..77.

CROSSREFS

Cf. A174888, A005171.

Sequence in context: A267612 A242252 A100810 * A005171 A283265 A181406

Adjacent sequences:  A174886 A174887 A174888 * A174890 A174891 A174892

KEYWORD

nonn

AUTHOR

Mats Granvik, Apr 01 2010

STATUS

approved

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Last modified November 21 09:14 EST 2019. Contains 329362 sequences. (Running on oeis4.)