%I #7 Jan 17 2017 19:43:29
%S 2,3,5,6,8,9,12,13,15,16,18,19,21,22,25,26,29,30,32,33,37,38,40,41,45,
%T 46,50,51,53,54,56,57,60,61,64,65,67,68,71,72,75,76,78,79,81,82,84,85,
%U 88,89,92,93,96,97,99,100,102,103,105,106,109,110,112,113,116,117,122,123,126,127,129,130,133
%N Positions of even terms in A280864.
%C By definition of A280864, this is a sequence of pairs of consecutive numbers, separated by gaps of size at least 1.
%H N. J. A. Sloane, <a href="/A280771/b280771.txt">Table of n, a(n) for n = 1..10486</a>
%Y Cf. A280864, A280770.
%K nonn
%O 1,1
%A _N. J. A. Sloane_, Jan 17 2017