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 A125361 #9 Apr 30 2025 15:15:38
%S A125361 1,24,196,1284,9836,76524,609940,4928052,40249964,331447308,
%T A125361 2747281456,22892351528,191590111316,1609306726532,13559412142738,
%U A125361 114546085965354,969826269069116,8227091944066248,69907440585587662,594878380136137122
%N A125361 Number of base 24 circular n-digit numbers with adjacent digits differing by 4 or less.
%C A125361 [Empirical] a(base,n)=a(base-1,n)+A025014(n+1) for base>=4.int(n/2)+1
%H A125361 OEIS Wiki, <a href="/wiki/Number_of_base_k_circular_n-digit_numbers_with_adjacent_digits_differing_by_d_or_less">Number of base k circular n-digit numbers with adjacent digits differing by d or less</a>
%o A125361 (S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>4)+($[(i+1)mod N]`-$[i]`>4))
%K A125361 nonn,base
%O A125361 0,2
%A A125361 _R. H. Hardin_, Dec 28 2006