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 A277441 #20 Mar 03 2024 10:14:59 %S A277441 0,10,95,950,9500,89476,894760,8946105,89448001,894438005,8944300005, %T A277441 89442827780,894427300005,8944273000005,89442720000005, %U A277441 894427196000005,8944271912400005,89442719120000005,894427191000000005,8944271910000000005,89442719100000000005,894427191000000000005 %N A277441 Least number k such that k^2 can be obtained from k by inserting n internal (but not necessarily contiguous) digits. %C A277441 A subsequence of A046851. %e A277441 a(2) = 95 as 95 is the least number that needs two internal digits inserted to become its square, i.e., 95 squared is 9(02)5. %Y A277441 Cf. A046851, A277442. %K A277441 nonn,base %O A277441 0,2 %A A277441 _Ivan N. Ianakiev_, Oct 15 2016 %E A277441 More terms from _Paolo P. Lava_, Oct 20 2016 %E A277441 a(13)-a(21) from _Giovanni Resta_, Jul 06 2019