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(# 3's)-(# 4's) in first n terms of A031235.
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%I #6 Dec 30 2023 23:01:42

%S 0,0,1,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,1,1,0,0,0,1,1,2,2,3,4,5,4,5,

%T 5,4,4,3,3,2,3,2,1,0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,

%U 1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,0

%N (# 3's)-(# 4's) in first n terms of A031235.

%Y Cf. A031235.

%K nonn

%O 1,28

%A _Clark Kimberling_