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Inverse of A271861.
1

%I #7 Apr 19 2016 02:36:22

%S 1,2,3,5,4,13,6,8,7,9,16,10,17,12,11,14,34,18,15,21,19,25,27,20,24,31,

%T 23,22,32,26,42,39,33,28,40,30,29,49,38,37,35,81,59,36,41,50,61,45,43,

%U 51,48,44,92,47,46,58,54,52,60,75,53,73,64,55,71,57,56

%N Inverse of A271861.

%H Max Barrentine, <a href="/A271862/b271862.txt">Table of n, a(n) for n = 1..1102</a>

%Y Cf. A271861.

%K nonn

%O 1,2

%A _Max Barrentine_, Apr 15 2016