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 A239460 #14 Oct 27 2019 15:44:25
%S A239460 11,48,927,1664,25125,36216,49343,64512,81729,1001000,1211331,1441728,
%T A239460 1692197,1962744,2253375,2564096,2894913,3245832,3616859,4008000,
%U A239460 4419261,48410648,52912167,57613824,62515625,67617576,72919683,78421952,84124389,90027000
%N A239460 Concatenation of n^2 and n^3.
%C A239460 a(n) is divisible by n^2.
%H A239460 Vincenzo Librandi, <a href="/A239460/b239460.txt">Table of n, a(n) for n = 1..1000</a>
%e A239460 a(9) = 81729 because 81 = 9^2 and 729 = 9^3.
%t A239460 Table[ToExpression[ToString[n^2]<>ToString[n^3]],{n,1,30}] (* _Vaclav Kotesovec_, Mar 24 2014 *)
%t A239460 Table[FromDigits[Join[Flatten[IntegerDigits[{n^2,n^3}]]]],{n,30}] (* _Harvey P. Dale_, Oct 27 2019 *)
%o A239460 (PARI) vector(100, n, eval(Str(n^2, n^3)))
%Y A239460 Cf. A053061, A055436, A061086, A061087, A239459, A239461, A239462, A239463, A239464.
%K A239460 nonn,base
%O A239460 1,1
%A A239460 _Colin Barker_, Mar 19 2014