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A143098 First differences of A143097. 3

%I #7 Mar 08 2024 11:57:39

%S 1,2,-1,2,2,-1,2,2,-1,2,2,-1,2,2,-1,2,2,-1,2,2,-1,2,2,-1,2,2,-1,2,2,

%T -1,2,2,-1,2,2,-1,2,2,-1,2,2,-1,2,2,-1,2,2,-1,2,2,-1,2,2,-1,2,2,-1,2,

%U 2,-1,2,2,-1,2,2,-1,2,2,-1,2,2,-1

%N First differences of A143097.

%C Binomial transform = A143100: (1, 3, 4, 6, 13, 30, 64,...).

%F G.f.: x(1+2x-x^2+x^3)/((1-x)(1+x+x^2)). [From _R. J. Mathar_, Sep 06 2008]

%Y Cf. A143097, A143100.

%K sign

%O 1,2

%A _Gary W. Adamson_, Jul 24 2008

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Last modified April 16 13:39 EDT 2024. Contains 371713 sequences. (Running on oeis4.)