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 A324593 #15 Sep 04 2019 08:02:43
%S A324593 1,1,5,10,10,515,2314,2314,1536863,4053992,4053992,18584686,146237365,
%T A324593 163039279,4775943486,13147233734,86153130379
%N A324593 a(n) is the smallest number k such that n consecutive integers starting at k have the same number of odd divisors (A001227).
%H A324593 Rémy Sigrist, <a href="/A324593/a324593.txt">C program for A324593</a>
%e A324593 515 has 4 odd divisors {1, 5, 103, 515}, 516 has 4 odd divisors {1, 3, 43, 129}, 517 has 4 odd divisors {1, 11, 47, 517}, 518 has 4 odd divisors {1, 7, 37, 259}, 519 has 4 odd divisors {1, 3, 173, 519} and 520 has 4 odd divisors {1, 5, 13, 65}. These the first 6 consecutive numbers with the same number of odd divisors, so a(6) = 515.
%o A324593 (C) See Links section.
%Y A324593 Cf. A001227, A006558, A045983, A045984, A323253, A324594.
%K A324593 nonn,more
%O A324593 1,3
%A A324593 _Ilya Gutkovskiy_, Sep 03 2019
%E A324593 a(11)-a(14) from _Rémy Sigrist_, Sep 04 2019
%E A324593 a(15)-a(17) from _Giovanni Resta_, Sep 04 2019