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 A014259 #16 Aug 02 2021 02:36:05
%S A014259 0,1,1,2,3,5,8,13,39,106,640,152,891,350,944,799,1941,2290,2863,5972,
%T A014259 5658,14537,79199,113734,516510,129349,1460431,1469990,2460072,
%U A014259 4170632,4820786,11040916,66724797,90783682,95363506,151320041,235386657,908003573,610687466
%N A014259 Iccanobif numbers: add reversal of a(n-1) to a(n-2).
%H A014259 Alois P. Heinz, <a href="/A014259/b014259.txt">Table of n, a(n) for n = 0..1000</a>
%p A014259 R:= n-> (s-> parse(cat(s[-i]$i=1..length(s))))(""||n):
%p A014259 a:= proc(n) option remember; `if`(n<2, n,
%p A014259 R(a(n-1)) +a(n-2))
%p A014259 end:
%p A014259 seq(a(n), n=0..50); # _Alois P. Heinz_, Jun 18 2014
%t A014259 a[0] = 0; a[1] = 1; a[n_] := a[n] = FromDigits[ Reverse[ IntegerDigits[ a[n - 1]]]] + a[n - 2]; Table[ a[n], {n, 0, 36}] (* _Robert G. Wilson v_ *)
%Y A014259 Cf. A000045, A001129, A014258, A014260.
%K A014259 nonn,base,easy
%O A014259 0,4
%A A014259 _N. J. A. Sloane_