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 A067827 #10 Apr 29 2022 12:00:54 %S A067827 2,404,494,524,692,764,854,944,1034,1124,1394,1682,1784,1826,1844, %T A067827 2114,2204,2294,2414,2534,2564,2714,2774,2804,2834,2924,3002,3014, %U A067827 3044,3074,3266,3284,3374,3434,3464,3644,3674,3794,3842,3854,3884,3914,3926,4094 %N A067827 Even numbers k such that k/2 is nonprime and sigma(k+1) > sigma(k). %H A067827 Amiram Eldar, <a href="/A067827/b067827.txt">Table of n, a(n) for n = 1..10000</a> %t A067827 Select[Range[2, 4000, 2], !PrimeQ[#/2] && DivisorSigma[1, # + 1] > DivisorSigma[1, #] &] (* _Amiram Eldar_, Apr 29 2022 *) %Y A067827 Cf. A000203, A053224. %K A067827 nonn %O A067827 1,1 %A A067827 _Benoit Cloitre_, Feb 08 2002