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A267183 Row 3 of the square array in A267181. 0

%I

%S 1,3,4,0,4,5,1,5,6,2,6,7,3,7,8,4,8,9,5,9,10,6,10,11,7,11,12,8,12,13,9,

%T 13,14,10,14,15,11,15,16,12,16,17,13,17,18,14,18,19,15,19,20,16,20,21,

%U 17,21,22,18,22,23,19,23,24,20,24,25,21,25,26,22,26,27,23,27,28,24,28,29,25,29,30

%N Row 3 of the square array in A267181.

%F Conjectures from _Colin Barker_, Jan 29 2016: (Start)

%F a(n) = a(n-1)+a(n-3)-a(n-4) for n>4.

%F G.f.: (1+2*x+x^2-5*x^3+2*x^4) / ((1-x)^2*(1+x+x^2)). (End)

%Y Cf. A267181.

%K nonn

%O 0,2

%A _N. J. A. Sloane_, Jan 17 2016

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Last modified May 16 15:15 EDT 2022. Contains 353706 sequences. (Running on oeis4.)