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A091945 Numbers n such that there is no k, 0 <= k < n, satisfying A002487(k) = A002487(n). 4

%I #20 Dec 07 2022 06:15:53

%S 0,1,3,5,9,11,19,21,33,35,37,39,43,45,69,73,75,77,83,85,93,139,141,

%T 147,149,151,153,155,165,171,173,189,267,275,277,279,283,293,297,299,

%U 301,309,315,325,331,333,339,341,365,537,549,553,555,563,565,567,579,585

%N Numbers n such that there is no k, 0 <= k < n, satisfying A002487(k) = A002487(n).

%H Rémy Sigrist, <a href="/A091945/b091945.txt">Table of n, a(n) for n = 1..7297</a>

%H Rémy Sigrist, <a href="/A091945/a091945.gp.txt">PARI program</a>

%H <a href="/index/St#Stern">Index entries for sequences related to Stern's sequences</a>

%o (PARI) isok(n) = (A091926(n) == n); \\ _Michel Marcus_, Dec 06 2013

%o (PARI) See Links section.

%Y Cf. A002487, A091926.

%K nonn

%O 1,3

%A _Benoit Cloitre_, Mar 11 2004

%E Leading 0 inserted and name adapted by _Rémy Sigrist_, Dec 07 2022

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Last modified April 25 07:53 EDT 2024. Contains 371964 sequences. (Running on oeis4.)