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1, 3, 5 and the positive even numbers.
2

%I #19 Oct 24 2023 21:07:55

%S 1,2,3,4,5,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,

%T 46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,80,82,84,86,88,90,

%U 92,94,96,98,100,102,104

%N 1, 3, 5 and the positive even numbers.

%H <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (2,-1).

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

%t Sort[Join[Range[2,104,2],Range[1,5,2]]] (* _Harvey P. Dale_, Aug 28 2011 *)

%Y Cf. A004272.

%K easy,nonn

%O 0,2

%A _N. J. A. Sloane_