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 A077348 #7 Feb 08 2023 10:09:27 %S A077348 1,5,15,6,18,19,2,7,20,21,23,24,71,72,73,8,25,26,78,79,80,27,28,84,85, %T A077348 86,87,88,9,29,90,91,92,93,94,283,3,30,31,95,96,97,98,99,300,10,32,33, %U A077348 100,101,102,103,104,317,318,34,105,106,107,108,109,332,333,334,335,336 %N A077348 a(n) = A077346(n)^(1/2). %e A077348 Triangle begins: %e A077348 1; %e A077348 5, 15; %e A077348 6, 18, 19; %e A077348 2, 7, 20, 21; %e A077348 23, 24, 71, 72, 73; %e A077348 ... %o A077348 (PARI) row(n) = my(list=List(), k=1); while (#list != n, if (strsplit(Str(k^2), Str(n))[1] == "", listput(list, k)); k++); Vec(list); \\ _Michel Marcus_, Feb 08 2023 %Y A077348 Cf. A077346, A018796, A077347, A077349. %K A077348 base,easy,nonn,tabl %O A077348 1,2 %A A077348 _Amarnath Murthy_, Nov 05 2002 %E A077348 More terms from _Michel Marcus_, Feb 08 2023