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 A359572 #13 Dec 25 2024 15:03:28 %S A359572 1,3,6,4,2,5,8,11,9,12,14,20,22,19,7,13,21,31,43,57,30,32,15,18,16,10, %T A359572 23,29,33,41,44,42,45,24,27,25,17,34,28,46,40,60,35,38,36,26,47,39,61, %U A359572 53,77,48,51,49,37,62,52,78,68,96,54,76,70,94,56,58,55,59,71,74,72,75,89,92,90,93,109,73,91,111,133,157,110 %N A359572 Squares visited by a princess moving on a spirally numbered board, always to the lowest available unvisited square. %C A359572 A princess can move like a bishop or a knight. %H A359572 Neal Gersh Tolunsky, <a href="/A359572/b359572.txt">Table of n, a(n) for n = 1..10000</a> %e A359572 Board is numbered with the square spiral: %e A359572 . %e A359572 17--16--15--14--13 %e A359572 | | %e A359572 18 5---4---3 12 . %e A359572 | | | | %e A359572 19 6 1---2 11 . %e A359572 | | | %e A359572 20 7---8---9--10 . %e A359572 | %e A359572 21--22--23--24--25--26 %Y A359572 Cf. A316667, A316884. %K A359572 nonn %O A359572 1,2 %A A359572 _Neal Gersh Tolunsky_, Jan 06 2023