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 A162239 #7 Jun 02 2025 01:45:55
%S A162239 2002,2008,2013,2019,2030,2036,2041,2047,2058,2064,2069,2075,2086,
%T A162239 2092,2097,2104,2109,2115,2126,2132,2137,2143,2154,2160,2165,2171,
%U A162239 2182,2188,2193,2199,2205,2211,2222,2228,2233,2239,2250,2256,2261,2267,2278,2284
%N A162239 Years in which January first falls on a Tuesday (since 2001).
%t A162239 Select[Range[2001,2300],DayName[{#,1,1}]==Tuesday&] (* _Harvey P. Dale_, Jan 10 2023 *)
%Y A162239 A116369
%K A162239 nonn
%O A162239 1,1
%A A162239 _Claudio Meller_, Jun 28 2009