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 A053068 #13 Jul 02 2025 16:01:59
%S A053068 1,12,358,13213455,89144233377610,987159725844181676510946,
%T A053068 17711286574636875025121393196418317811,
%U A053068 5142298320401346269217830935245785702887922746514930352
%N A053068 Concatenation of next n Fibonacci numbers.
%D A053068 Felice Russo, A set of new Smarandache functions, sequences and conjectures in number theory, American Research Press 2000
%H A053068 Harvey P. Dale, <a href="/A053068/b053068.txt">Table of n, a(n) for n = 1..21</a>
%t A053068 Module[{nn=10,fibs},fibs=Fibonacci[Range[(nn(nn+1))/2]];FromDigits[Flatten[IntegerDigits/@#]]&/@TakeList[fibs,Range[nn]]] (* _Harvey P. Dale_, Dec 29 2024 *)
%Y A053068 Cf. A000045.
%K A053068 easy,base,nonn,less
%O A053068 1,2
%A A053068 _Felice Russo_, Feb 25 2000
%E A053068 More terms from _James Sellers_, Feb 28 2000