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 A152302 #12 Jul 09 2025 10:19:19
%S A152302 1,1,1,1,2,3,5,8,3,2,7,2,5,7,9,5,4,4,2,0,5,3,9,9,6,9,9,3,7,5,8,2,0,1,
%T A152302 5,8,3,0,0,9,0,8,1,3,4,5,4,3,4,8,8,9,8,3,4,0,2,3,9,5,1,6,5,4,6,9,6,4,
%U A152302 2,7,4,8,2,8,7,5,5,6,8,9,2,4,3,7,3,6,1,2,9,2,0,6,0,5,5,8,5,9,0,1,9
%N A152302 a(n) = f(n) mod 10 where f(n) = f(n-1) + f(n-2) + floor(f(n-1)/10) starting f(0) = f(1) = 1.
%D A152302 Ivars Peterson, The Jungles of Randomness, John Wiley and Sons, Inc., 1998, page 207.
%t A152302 f[0] = f[1] = 1; f[x_] := f[x] = f[x - 1] + f[x - 2] + Floor[f[x - 1]/10];
%t A152302 Table[Mod[f[n], 10], {n, 0, 100}]
%Y A152302 Cf. A152303, A152305.
%K A152302 nonn
%O A152302 0,5
%A A152302 _Roger L. Bagula_, Dec 02 2008
%E A152302 Data corrected to match formula by _Kevin Ryde_, Jul 08 2025