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 A272676 #10 May 21 2016 22:53:55 %S A272676 0,1,5,6,7,23,25,27,29,30,32,34,35,37,38,39,40,42,43,44,45,46,47,48, %T A272676 49,50,51,52,53,54,55,56,57,58,59,188,190,193,195,198,200,203,205,208 %N A272676 Smallest number greater than previous term such that a(n)^2 begins with n. %H A272676 Chai Wah Wu, <a href="/A272676/b272676.txt">Table of n, a(n) for n = 0..10000</a> %e A272676 a(4) = 7 because 7^2 = 49 begins with 4. (Without the monotonic condition, we could have used 4 - this would give A018851.) %Y A272676 Cf. A077502 (the squares), A018851, A018796. %K A272676 nonn,base %O A272676 0,3 %A A272676 _Nathan Fox_, _Brooke Logan_, and _N. J. A. Sloane_, May 21 2016