A254052 - OEIS

%I #7 Feb 01 2015 10:02:46

%S 1,3,2,4,6,7,11,5,16,22,8,29,37,10,46,56,12,67,79,17,92,106,9,121,137,

%T 23,154,172,30,191,211,13,232,254,38,277,301,47,326,352,15,379,407,57,

%U 436,466,68,497,529,18,562,596,80,631,667,93,704,742,24,781,821,107,862,904,122,947,991,14,1036,1082,138,1129,1177,155,1226,1276,31

%N Inverse permutation to A254051.

%H Antti Karttunen, <a href="/A254052/b254052.txt">Table of n, a(n) for n = 1..10000</a>

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

%F As a composition of other permutations:

%F a(n) = A254054(A064216(n)).

%o (Scheme) (define (A254052 n) (let ((x (A254046 n)) (y (A253887 n))) (* (/ 1 2) (- (expt (+ x y) 2) x y y y -2))))

%Y Inverse: A254051.

%Y Cf. A253887, A254046, A254047.

%Y Related permutations: A064216, A254054.

%K nonn

%O 1,2

%A _Antti Karttunen_, Jan 24 2015