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A129197 a(n) = numerator( 3*(3+(-1)^n)/(n+1)^3 ). 4
12, 3, 4, 3, 12, 1, 12, 3, 4, 3, 12, 1, 12, 3, 4, 3, 12, 1, 12, 3, 4, 3, 12, 1, 12, 3, 4, 3, 12, 1, 12, 3, 4, 3, 12, 1, 12, 3, 4, 3, 12, 1, 12, 3, 4, 3, 12, 1, 12, 3, 4, 3, 12, 1, 12, 3, 4, 3, 12, 1, 12, 3, 4, 3, 12, 1, 12, 3, 4, 3, 12, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Denominator of 3*(3+(-1)^n)/(n+1)^3 is A129196.

LINKS

Table of n, a(n) for n=0..71.

FORMULA

G.f.: (12 + 3*x + 4*x^2 + 3*x^3 + 12*x^4 + x^5)/(1 - x^6).

CROSSREFS

Cf. sequences listed in Comments section of A283393.

Sequence in context: A126860 A010203 A113923 * A098067 A070604 A268592

Adjacent sequences:  A129194 A129195 A129196 * A129198 A129199 A129200

KEYWORD

nonn,easy

AUTHOR

Paul Barry, Apr 02 2007

STATUS

approved

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Last modified July 23 13:58 EDT 2019. Contains 325254 sequences. (Running on oeis4.)