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Inverse to A296423.
2

%I #10 Dec 15 2017 12:24:36

%S 1,2,3,4,5,6,7,8,9,11,10,13,12,15,17,18,14,21,16,25,19,27,20,23,22,29,

%T 31,35,24,37,26,32,33,43,40,39,28,45,47,51,30,53,34,55,49,57,36,41,38,

%U 59,68,70,42,61,62,72,74,76,44,78,46,82,84,48,64,88,50

%N Inverse to A296423.

%H Rémy Sigrist, <a href="/A296424/b296424.txt">Table of n, a(n) for n = 1..5000</a>

%H <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>

%H Rémy Sigrist, <a href="/A296424/a296424.png">Scatterplot of the first 25000 terms</a>

%e A296423(42) = 53, hence a(53) = 42.

%Y Cf. A296423.

%K nonn

%O 1,2

%A _Rémy Sigrist_, Dec 12 2017