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A115383
Row sums of Thue-Morse correlation triangle A115382.
1
1, 2, 2, 4, 4, 4, 7, 8, 9, 10, 13, 12, 16, 20, 19, 24, 25, 26, 31, 32, 36, 40, 42, 44, 49, 54, 54, 64, 64, 64, 75, 76, 81, 86, 91, 92, 100, 108, 108, 116, 121, 126, 132, 140, 144, 148, 158, 160, 169, 178, 180, 192, 196, 200, 211, 220, 225, 230, 245, 240, 256, 272, 267
OFFSET
0,2
FORMULA
G.f.: A(x)^2/(1-x^2) where A(x) is the g.f. of the Thue-Morse sequence A010060(n+1); a(n)=sum{k=0..n, sum{j=0..k, A010060(j+1)}*sum{j=0..n-k, A010060(j+1)*(-1)^(n-k-j)}}.
CROSSREFS
Sequence in context: A372678 A120456 A367039 * A219156 A210036 A304230
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Jan 21 2006
STATUS
approved