A372072 - OEIS

%I #11 Jun 21 2024 20:41:38

%S 1,2,3,4,9,10,11,6,5,12,24,16,25,8,7,14,35,18,36,20,13,22,51,26,15,28,

%T 21,30,61,37,62,32,29,39,17,45,73,34,23,41,85,47,91,43,31,49,99,52,19,

%U 54,33,56,114,63,27,58,40,65,126,74,127,60,42,67,44,76,139

%N Where n appears in A373390, or -1 if n never appears there.

%H Michael De Vlieger, <a href="/A372072/b372072.txt">Table of n, a(n) for n = 1..10000</a>

%Y Cf. A373390, A372073, A372078-A372081, A373786-A373791.

%K nonn

%O 1,2

%A _N. J. A. Sloane_, Jun 06 2024

%E More terms from _Michael De Vlieger_, Jun 07 2024