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 A125348 #9 Apr 30 2025 15:11:46
%S A125348 1,11,79,491,3479,25161,185353,1377877,10296415,77159957,579124519,
%T A125348 4350292705,32693711237,245763900549,1847696428671,13892325835221,
%U A125348 104456760543551,785430024706513,5905865012106589,44408109269422365
%N A125348 Number of base 11 circular n-digit numbers with adjacent digits differing by 4 or less.
%C A125348 [Empirical] a(base,n)=a(base-1,n)+A025014(n+1) for base>=4.int(n/2)+1
%H A125348 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 A125348 (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 A125348 nonn,base
%O A125348 0,2
%A A125348 _R. H. Hardin_, Dec 28 2006