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%I #6 Nov 01 2014 18:53:19
%S 1,399,8099,33123,93635,159200,256035,492803,864899,1416099,2196323,
%T 3261635,4674243,6502499,8820899,12531599,16257023,20757135,26132543,
%U 32489999,39942399,48608783,58614335,65593800,73205135,86713343,102009999,119246399,138579983
%N Numbers in A249406 that are not of the form m*(m+1).
%H Reinhard Zumkeller, <a href="/A249408/b249408.txt">Table of n, a(n) for n = 1..150</a>
%F A005369(a(n)) = 0.
%o (Haskell)
%o import Data.List ((\\))
%o a249408 n = a249408_list !! (n-1)
%o a249408_list = filter ((== 0) . a005369) a249406_list
%Y Cf. A249406, A005369, A002378, subsequence of A078358.
%K nonn
%O 1,2
%A _Reinhard Zumkeller_, Oct 31 2014