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 A347039 #17 Aug 14 2021 15:30:55 %S A347039 1622,4905,12149,15433,22716,30000,33244,40527,43811,51055,54338, %T A347039 61622,64905,72149,75433,82716,90000,93244,100527,103811,111055, %U A347039 114338,121622,124905,132149,135433,142716,150000,153244,160527,163811,171055,174338,181622,184905,192149,195433,202716,210000,213244,220527,223811,231055,234338 %N A347039 Times on the display of a 24-hour digital clock with 6 digits, rounded to full seconds, at which the hour and minute hands of an analog clock form a right angle. Terms with fewer than 6 digits are to be assumed filled with zeros to the left. %C A347039 Configurations in which the hour and minute hands of an analog clock enclose a right angle occur 44 times each day. The first occurrence happens at 00:16:22. The period is 1963 + 7/11 seconds, i.e., 32 minutes 43.6363... seconds. %Y A347039 Cf. A120500, A335789. %K A347039 nonn,base,fini,full,easy %O A347039 1,1 %A A347039 _Hugo Pfoertner_, Aug 13 2021