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 A361342 #17 Apr 09 2023 07:57:01
%S A361342 139,148,149,167,179,187,188,189,196,197,216,217,218,226,236,238,246,
%T A361342 247,249,256,258,261,262,263,266,269,271,276,279,283,287,288,292,294,
%U A361342 324,329,334,337,338,339,341,342,347,349,354,362,364,368,369,372,374,376,381,382,383,386,391,392,396,399,413,416,417,423,427,428,431,436,442,443,446
%N A361342 Numbers k such that A361338(k) = 3.
%C A361342 {0, 6, 8} is by far the most frequent possible outcome for the numbers in this sequence (almost 60% of all cases up to 10^4, next most frequent being {0, 2, 6} and {0, 4, 6} and {0, 4, 8} in about 8% of the cases each). Up to 10^4, no term in this sequence can ever produce a 3. - _M. F. Hasler_, Apr 08 2023
%H A361342 Michael De Vlieger, <a href="/A361342/b361342.txt">Table of n, a(n) for n = 1..775</a>
%t A361342 -1 + Position[#, 3][[All, 1]] &@ Flatten@ Array[Map[Total, Transpose@ ImageData[ColorNegate@ Import["https://oeis.org/A361338/a361338_2.png", "PNG"], "Bit"][[10 # + 1 ;; 10 # + 10, 1 ;; 1000]]] &, 1, 0] (* _Michael De Vlieger_, Apr 06 2023, using image at A361338 *)
%o A361342 (PARI) select( {is_A361342(n)=A361338(n)==3}, [1..456]) \\ _M. F. Hasler_, Apr 08 2023
%Y A361342 Cf. A361337-A361349.
%K A361342 nonn,base
%O A361342 1,1
%A A361342 _N. J. A. Sloane_, Apr 05 2023