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 A125324 #9 Apr 30 2025 15:02:48
%S A125324 1,14,86,434,2542,15134,92318,570822,3567150,22467638,142378416,
%T A125324 906569832,5794153978,37142273910,238653335454,1536292377434,
%U A125324 9904175388110,63924370849750,412963549917890,2669744556760982
%N A125324 Number of base 14 circular n-digit numbers with adjacent digits differing by 3 or less.
%C A125324 [Empirical] a(base,n)=a(base-1,n)+A025012(n+1) for base>=3.int(n/2)+1
%H A125324 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 A125324 (S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>3)+($[(i+1)mod N]`-$[i]`>3))
%K A125324 nonn,base
%O A125324 0,2
%A A125324 _R. H. Hardin_, Dec 28 2006