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 A062923 #13 Feb 10 2024 18:54:03 %S A062923 0,1,2,3,4,8,12,16,30,32,48,64,120,128,166,192,256,278,480,512,664, %T A062923 765,768,1024,1112,1390,1682,1803,1920,2048,2426,2656,3060,3072,4096, %U A062923 4365,4448,5446,5560,6728,7212,7441,7680,8192,9704,9945,10624,12240,12288,16384,17460 %N A062923 Numbers k that, when expressed in base 4 and then interpreted in base 8, give a multiple of k. %H A062923 Harvey P. Dale, <a href="/A062923/b062923.txt">Table of n, a(n) for n = 1..100</a> %e A062923 8 in base 4 is 20, which interpreted in base 8 is 16 = 2*8. %t A062923 Join[{0},Select[Range[18000],Mod[FromDigits[IntegerDigits[#,4],8],#]==0&]] (* _Harvey P. Dale_, Feb 10 2024 *) %Y A062923 Cf. A062845, A062846, A062847, A062848, A062849, A062850, A062853, A062864, A062865, A062884, A062889, A062891, A062920, A062921, A062922, A062925, A062928, A062929, A062930, A062931, A062934, A062937, A062939, A062942, A062943, A062944. %K A062923 base,nonn %O A062923 1,3 %A A062923 _Erich Friedman_, Jul 21 2001 %E A062923 Offset changed to 1 and more terms from _Georg Fischer_, Mar 13 2023