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a(n)=A088516(n)/2.
2

%I #5 Jan 25 2020 12:37:56

%S 2,3,1,4,1,2,5,6,2,1,7,7,2,3,8,1,8,9,3,2,9,1,10,10,4,2,11,11,1,11,12,

%T 3,4,12,2,1,12,13,13,13,4,3,5,2,14,13,1,14,4,5,15,14,2,1,16,16,5,16,4,

%U 15,6,3,16,2,17,17,17,16,1,17,6,4,18,7,3,18,2,17,19,19,5,1,4,7,19,19,18,19

%N a(n)=A088516(n)/2.

%H Ray Chandler, <a href="/A089555/b089555.txt">Table of n, a(n) for n = 1..10000</a>

%Y Cf. A088319, A088515, A088516, A088546, A089545-A089552, A089554-A089558.

%K nonn

%O 1,1

%A _Ray Chandler_, Nov 16 2003