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 A341490 #9 Feb 15 2021 01:59:15 %S A341490 1,2,6,18,46,84,170,182,194,206,534,562,586,785,1041,1069,1097,1127, %T A341490 1151,1933,1987,2023,2063,2091,2119,2147,2179,2207,3930,3966,4002, %U A341490 4038,4074,4110,4220,6012,8503,8543,8583,8623,8815,8877,8947,9013,9061,9109,9157 %N A341490 Numbers k such that A088177(k) = 1. %C A341490 This sequence is infinite, and A088178 is a permutation of the positive integers. %H A341490 Rémy Sigrist, <a href="/A341490/b341490.txt">Table of n, a(n) for n = 1..5000</a> %H A341490 Rémy Sigrist, <a href="/A341490/a341490.txt">C++ program for A341490</a> %e A341490 A088177(6) = 1, so 6 belongs to this sequence. %e A341490 A088177(7) = 5, so 7 does not belong to this sequence. %o A341490 (C++) See Links section. %Y A341490 Cf. A088177, A088178 . %K A341490 nonn %O A341490 1,2 %A A341490 _Rémy Sigrist_, Feb 13 2021