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Search: id:A102397
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A102397 a(n) = concatenation of first n elements of Thue-Morse sequence A010059. +0
3
1, 10, 100, 1001, 10010, 100101, 1001011, 10010110, 100101100, 1001011001, 10010110011, 100101100110, 1001011001101, 10010110011010, 100101100110100, 1001011001101001, 10010110011010010, 100101100110100101 (list; graph; listen)
OFFSET

0,2

FORMULA

a(n)=sum{k=0..n, (1+(-1)^A010060(n-k))10^k/2}.

CROSSREFS

Cf. A019299.

Adjacent sequences: A102394 A102395 A102396 this_sequence A102398 A102399 A102400

Sequence in context: A138823 A033146 A118256 this_sequence A132347 A097178 A135651

KEYWORD

base,easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Jan 06 2005

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Last modified October 13 02:37 EDT 2008. Contains 145008 sequences.


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