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 A370956 #20 Mar 28 2024 16:12:11 %S A370956 0,1,4,8,21,1518,2510,4100,11181,18414,30374,50121,82924,136341, %T A370956 611212,4477981,7351356,12086260,19861634,32648059,53646155,144857355, %U A370956 238062163,643132294,1736990151,4691130396,7709412048 %N A370956 Record high values in A245340. %C A370956 These numbers take a record number of steps to appear in A125717. %o A370956 (Python) %o A370956 from itertools import count, islice %o A370956 def A370956_gen(): # generator of terms %o A370956 a, aset, b, c = 0, set(), 0, -1 %o A370956 for n in count(1): %o A370956 aset.add(a) %o A370956 if a==b: %o A370956 if n-1>c: %o A370956 c = n-1 %o A370956 yield c %o A370956 while b in aset: %o A370956 b += 1 %o A370956 a = next(a for a in count(a%n,n) if a not in aset) %o A370956 A370956_list = list(islice(A370956_gen(),20)) # _Chai Wah Wu_, Mar 28 2024 %Y A370956 Cf. A125717, A245340, A245394, A245395, A370951. %Y A370956 See A370959 for the indices of these records in A245340. %K A370956 nonn,more %O A370956 1,3 %A A370956 _N. J. A. Sloane_, Mar 13 2024 %E A370956 a(17)-a(24) from _Michael S. Branicky_, Mar 28 2024 %E A370956 a(25)-a(27) from _Chai Wah Wu_, Mar 28 2024