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A127245 Row sums of a signed Thue-Morse related triangle. 2
1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Row sums of A127244. a(n)=mod(A127246(n),2). 0's occur at positions indexed by the odious numbers given by A091855.

LINKS

Table of n, a(n) for n=0..50.

FORMULA

a(n)=sum{k=0..n, (-1)^(n-k)*Product{j=0..n-k-1,A010060(n-j)}}

CROSSREFS

Sequence in context: A260190 A260192 A057078 * A175192 A088150 A117567

Adjacent sequences:  A127242 A127243 A127244 * A127246 A127247 A127248

KEYWORD

easy,nonn

AUTHOR

Paul Barry, Jan 10 2007

STATUS

approved

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Last modified December 3 23:53 EST 2020. Contains 338920 sequences. (Running on oeis4.)