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 A264775 #17 Dec 02 2015 11:23:42 %S A264775 4,25,159,531,3101,24903,243740,433129,2703038,21046245,53478992, %T A264775 292123372,2164833445,21425610902,48888908358,192151648872, %U A264775 477890021223,2279013856319,19998940546342,46961100477911,72630984382646,259140398165389,1861711571434526,14850553878036591,56672657547446354,303286443000496342,2448230500494961492,4821616822771036069,24316253937847771953 %N A264775 Square root of concatenation(A090566(n), A090566(n+1)). %C A264775 Sequence A090566 lists the smallest integer larger than the preceding term such that their concatenation is a square. This sequence lists the square root of these squares. %C A264775 The initial term a(0)=1 corresponds to the natural extension A090566(0):=0 (or an "empty" A090566(0)). %C A264775 Sequence A082210 is the analog of this corresponding to the variant A082209 of A090566. %H A264775 David W. Wilson, <a href="/A264775/b264775.txt">Table of n, a(n) for n = 1..1839</a> %Y A264775 Cf. A090566; A082210, A082209. %K A264775 nonn,base %O A264775 1,1 %A A264775 _M. F. Hasler_, Nov 24 2015