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A064959 Inverse permutation to A064419. 2

%I #13 Jul 13 2013 12:02:40

%S 1,2,3,4,5,11,23,18,14,6,33,12,40,24,7,19,62,13,68,8,25,34,87,17,9,41,

%T 15,26,104,10,111,20,35,63,22,16,133,69,42,21,144,27,162,36,30,88,172,

%U 28,47,31,64,43,197,29,32,46,70,105,215,38,237,112,48,52,39,37,248,65

%N Inverse permutation to A064419.

%H Reinhard Zumkeller, <a href="/A064959/b064959.txt">Table of n, a(n) for n = 1..10000</a>

%H J. C. Lagarias, E. M. Rains and N. J. A. Sloane, <a href="http://arXiv.org/abs/math.NT/0204011">The EKG sequence</a>, Exper. Math. 11 (2002), 437-446.

%H <a href="/index/Ed#EKG">Index entries for sequences related to EKG sequence</a>

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

%o (Haskell)

%o import Data.List (elemIndex)

%o import Data.Maybe (fromJust)

%o a064959 n = a064959_list !! (n-1)

%o a064959_list = map ((+ 1) . fromJust . (`elemIndex` a064419_list)) [1..]

%o -- _Reinhard Zumkeller_, Sep 17 2001

%Y Cf. A064419, A064413.

%K nonn,easy

%O 1,2

%A _N. J. A. Sloane_, Oct 30, 2001

%E More terms from _Naohiro Nomoto_, Oct 31 2001

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)