A294428 - OEIS

%I #14 Nov 08 2017 21:24:23

%S 2,4,6,8,7,10,12,14,16,18,17,20,21,23,24,28,26,30,32,33,34,38,36,40,

%T 42,43,44,46,47,50,49,52,54,55,57,59,61,62,65,64,67,68,69,71,75,73,77,

%U 79,81,80,83,85,87,88,91,90,93,95,94,97,99,101,103,104

%N Terms of A065188 that are below the main diagonal.

%C This gives another way to view A199134. In fact, a(n) = A065188(A199134(n)).

%H N. J. A. Sloane, <a href="/A294428/b294428.txt">Table of n, a(n) for n = 1..19000</a>

%Y Cf. A065188, A199134, A275884, A294428.

%K nonn

%O 1,1

%A _N. J. A. Sloane_, Nov 06 2017, based on an email from _Don Knuth_, Oct 31, 2017