|
%I #23 Sep 08 2022 08:45:10
%S 1,2,4,6,7,9,11,12,14,16,18,19,21,23,24,26,28,30,31,33,35,36,38,40,41,
%T 43,45,47,48,50,52,53,55,57,59,60,62,64,65,67,69,70,72,74,76,77,79,81,
%U 82,84,86,88,89,91,93,94,96,98,100,101,103,105,106,108,110,111,113,115
%N First column of table A083087.
%C It appears that A188937 gives the positions of 0 in the zero-one sequence A188037; complement of A080754. [From Clark Kimberling, Mar 19 2011]
%F a(n) = floor(n*x/(x-1)) + 1, n>=0, where x=1+sqrt(2).
%F a(n) = floor(n/sqrt(2)) + n + 1.
%t f[n_] := Floor[n/Sqrt@2 + n + 1]; Array[f, 68, 0]
%o (Magma) z:=70; x:=1+Sqrt(2); [ Floor(n*x/(x-1))+1: n in [0..z] ]; - Klaus Brockhaus, Jan 04 2011
%Y Cf. A083087, A083044, A083047, A083050.
%Y Cf. A080755. [From _R. J. Mathar_, Sep 17 2008]
%K nonn
%O 0,2
%A _Paul D. Hanna_, Apr 21 2003
%E This entry formerly contained an erroneous comment, which was deleted by _N. J. A. Sloane_, Jan 30 2008
|
