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When n appears in A352187, or -1 if n never appears.
4

%I #5 Mar 12 2022 16:15:34

%S 1,2,5,3,10,4,14,8,6,9,22,7,27,13,11,17,33,12,40,18,15,21,52,16,19,26,

%T 24,30,61,20,67,31,23,32,36,25,76,39,28,43,88,29,93,48,35,51,101,42,

%U 37,55,34,56,111,47,44,38,41,60,127,54,131,66,46,70,64,50,136,71,53,80,144,59,149,75,63,74,45,69,162,84,78,87

%N When n appears in A352187, or -1 if n never appears.

%H N. J. A. Sloane, <a href="/A352188/b352188.txt">Table of n, a(n) for n = 1..4950</a>

%Y Cf. A352187, A352189, A352190.

%K nonn

%O 1,2

%A _N. J. A. Sloane_, Mar 12 2022