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A304090 Inverse of A282291: if A282291(k) = n, a(n) = k, or 0 if n does not occur in A282291. 2

%I #7 May 17 2018 17:03:32

%S 1,2,4,6,8,3,14,26,66,9,34,5,96,15,11,6531,193,67,386,7,17,35,770,27,

%T 6146,97,7484,19,1538,10,3074,1210614,37,194,21,71,14647,387,99,29,

%U 30533,16,60824,39,69,771,122349,6532,367278,6147,196,101,245225,7485,41,31,389,1539,688293,12,1535694,3075,73

%N Inverse of A282291: if A282291(k) = n, a(n) = k, or 0 if n does not occur in A282291.

%C This is a left inverse of A282291, and also the right inverse if A282291 is a permutation of natural numbers, in which case the fallback-clause is unnecessary.

%F For n >= 1, a(A282291(n)) = n.

%o (PARI) \\ Use the program given in A282291.

%Y Cf. A282291, A302854.

%K nonn

%O 1,2

%A _Antti Karttunen_, May 17 2018

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)