%I
%S 3,1,4,1,3,4,3,1,4,1,3,4,3,1,4,1,3,4,3,1,4,1,3,4,3,1,4,1,3,4,3,1,4,1,
%T 3,4,3,1,4,1,3,4,3,1,4,1,3,4,3,1,4,1,3,4,3,1,4,1,3,4,3,1,4,1,3,4,3,1,
%U 4,1,3,4,3,1,4,1,3,4,3,1,4,1,3,4,3,1,4,1,3,4,3,1,4,1,3,4,3,1,4,1,3,4,3,1,4,1,3,4,3,1,4,1,3,4,3,1,4,1,3,4
%N First differences of A273324.
%C Periodic with a period of six: [3, 1, 4, 1, 3, 4] ?
%H Antti Karttunen, <a href="/A278536/b278536.txt">Table of n, a(n) for n = 1..9996</a>
%F a(n) = A273324(1+n)  A273324(n).
%Y Cf. A273324.
%K nonn
%O 1,1
%A _Antti Karttunen_, Nov 26 2016, after _Altug Alkan_'s comment in A273324.
