login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A127242
Diagonal sums of Thue-Morse triangle A127241.
1
1, 0, 1, 1, 1, 1, 2, 0, 1, 2, 1, 1, 2, 0, 1, 2, 2, 2, 4, 2, 3, 3, 2, 2, 4, 0, 1, 3, 1, 2, 3, 3, 3, 4, 3, 2, 5, 2, 5, 5, 5, 2, 4, 5, 2, 7, 3, 6, 5, 1, 7, 7, 3, 4, 5, 6, 4, 4, 4, 2, 9
OFFSET
0,7
FORMULA
a(n)=sum{k=0..floor(n/2), A010060(binomial(k,n-2k))}
CROSSREFS
Sequence in context: A141803 A249147 A260648 * A325392 A025853 A228247
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Jan 10 2007
STATUS
approved