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 A381528 #6 Mar 03 2025 13:37:19 %S A381528 0,1,3,22,24,32,42,72,84,384,724,2584,200000002,200000004,2000000002 %N A381528 Indices of records in A381526. %o A381528 (Python) %o A381528 from itertools import count %o A381528 def b(n): %o A381528 if n in [0, 2, 4, 8] or n % 10 == 0: return -1 %o A381528 for k in count(1): %o A381528 if str(k) in str(k*n): return k %o A381528 a, n, max = [], 0, -2 %o A381528 while len(a) < 10: %o A381528 if (m := b(n)) > max: %o A381528 a.append(n) %o A381528 max = m %o A381528 n += 1 %o A381528 print(a) %Y A381528 Cf. A381526. %K A381528 nonn %O A381528 1,3 %A A381528 _Dominic McCarty_, Feb 26 2025