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A351624 Fixed points of A093714. 1

%I #22 May 05 2022 12:46:07

%S 1,91,93,117,147,164,172,189,224,231,254,273,284,327,344,357,374,382,

%T 399,411,434,464,483,494,543,561,567,584,592,609,644,674,693,704,747,

%U 777,794,819,854,884,891,903,914,932,939,957,987,1001,1012,1029,1064,1094

%N Fixed points of A093714.

%C From _Michael De Vlieger_, May 04 2022: (Start)

%C Also positions of 0's in A352931.

%C Fixed points of A352588 are these terms together with 2 and 8. (End)

%H Rémy Sigrist, <a href="/A351624/b351624.txt">Table of n, a(n) for n = 1..10000</a>

%H Rémy Sigrist, <a href="/A351624/a351624.png">Logarithmic scatterplot of the first differences of the first 400000 terms</a>

%H Rémy Sigrist, <a href="/A351624/a351624.txt">C program</a>

%e A093714(91) = 91 so 91 belongs to this sequence.

%e A093714(92) = 88 so neither 88 nor 92 belongs to this sequence.

%t {1}~Join~Reap[Do[k = u; While[Nand[FreeQ[c, k], CoprimeQ[j, k], k != j + 1], k++]; j = k; AppendTo[c, k]; If[k == i, Sow[k]]; If[k == u, While[MemberQ[c, u], u++]; c = DeleteCases[c, _?(# < u &)]], {i, 2, nn}]][[-1, -1]] (* _Michael De Vlieger_, May 04 2022 *)

%o (C) See Links section.

%Y Cf. A093714, A352588, A352931.

%K nonn

%O 1,2

%A _Rémy Sigrist_, May 04 2022

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Last modified July 29 06:24 EDT 2024. Contains 374731 sequences. (Running on oeis4.)