This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A372293 #7 Apr 26 2024 14:32:02
%S A372293 1,3,5,7,9,11,13,15,17,19,23,25,27,29,31,33,35,37,39,41,43,47,49,51,
%T A372293 53,55,57,59,61,63,65,67,71,73,75,77,79,81,83,85,87,89,91,95,97,99,
%U A372293 101,103,105,107,109,111,113,115,119,121,123,125,127,129,131,133,135,137,139,143,145,147,149,151,153,155,157
%N A372293 Odd numbers that do not occur in the odd bisection of A371094.
%C A372293 Odd numbers that do not occur in array A371100.
%H A372293 Antti Karttunen, <a href="/A372293/b372293.txt">Table of n, a(n) for n = 1..14930</a>
%o A372293 (PARI)
%o A372293 A371094(n) = { my(m=1+3*n, e=valuation(m,2)); ((m*(2^e)) + (((4^e)-1)/3)); };
%o A372293 isA372293(n) = if(!(n%2),0,forstep(k=1,n,2,if(A371094(k)==n,return(0))); (1));
%Y A372293 Setwise difference A005408 \ A372290.
%Y A372293 Cf. A371094, A371100.
%Y A372293 Subsequences: A004767, A017077.
%K A372293 nonn
%O A372293 1,2
%A A372293 _Antti Karttunen_, Apr 26 2024