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A091905 Expansion of (1-4x)/((1+4x)(1-8x)). 2
1, 0, 32, 128, 1536, 10240, 90112, 688128, 5636096, 44564480, 358612992, 2860515328, 22917677056, 183207198720, 1466194460672, 11727408201728, 93827855548416, 750588484648960, 6004845316145152, 48038212773347328 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

A091905(n+1)/32=A091904(n)

LINKS

Table of n, a(n) for n=0..19.

Index entries for linear recurrences with constant coefficients, signature (4,32).

FORMULA

a(n)=8^n/3+2(-4)^n/3

CROSSREFS

Sequence in context: A239728 A244082 A033323 * A100626 A330818 A231045

Adjacent sequences:  A091902 A091903 A091904 * A091906 A091907 A091908

KEYWORD

easy,nonn

AUTHOR

Paul Barry, Feb 10 2004

STATUS

approved

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Last modified March 2 09:56 EST 2021. Contains 341746 sequences. (Running on oeis4.)