A129681 - OEIS

%I #6 Aug 05 2019 14:37:09

%S 1,4,-2,0,-2,-1,1,4,-2,-1,0,-2,1,6,-2,0,-2,-1,0,-2,1,2,-2,-1,1,4,-2,0,

%T -2,-1,1,4,-2,-1,0,-2,1,2,-2,-1,1,6,-2,0,-2,-1,0,-2,1,4,-2,0,-2,-1,1,

%U 4,-2,-1,0,-2,1,6,-2,0,-2,-1,0,-2,1,2,-2,-1,1,6,-2,0,-2,-1,0,-2,1,4,-2,0,-2,-1,1,4,-2,-1,0,-2,1,2,-2,-1,1,4,-2

%N Distance sequence of A129677: A129677(n)-n.

%C The numbers in this sequence seem to be in the range of [ -2,6], but they are never 3 nor 5 (tested up to 10^4). The relative density of the values {-2,-1,0,1,2,4,6} asymptotically is {8,4,4,4,1,2,1}.

%Y Distance of A129677, Cf. A129678, A129679, A129680 and A000069.

%K sign

%O 1,2

%A Ferenc Adorjan (fadorjan(AT)freemail.hu or ferencadorjan(AT)gmail.com), May 01 2007