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A094027 Expansion of x(1+100x)/((1-x^2)(1-100x^2)). 1
0, 1, 100, 101, 10100, 10101, 1010100, 1010101, 101010100, 101010101, 10101010100, 10101010101, 1010101010100, 1010101010101, 101010101010100, 101010101010101, 10101010101010100, 10101010101010101 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
COMMENTS
The expansion of x(1+kx)/((1-x^2)(1-kx^2)) has a(n)=k^((n+1)/2)/(2(sqrt(k)-1))-(-sqrt(k))^(n+1)/(2(sqrt(k)+1))-(-1)^n/2-(k+1)/(2(k-1))
LINKS
FORMULA
a(n)=2^n*5^(n+1)((-1)^n/11+1/9)-(-1)^n/2-101/198
CROSSREFS
Cf. A075427, A094025, A080610 (interpreted as binary), A094026.
Sequence in context: A178530 A063010 A215022 * A281149 A204582 A204583
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Apr 22 2004
STATUS
approved

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Last modified March 28 22:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)