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 A383367 #63 May 13 2025 08:55:00 %S A383367 2,177,352,1536,2401,40898,60625,185761,19512097,47761921,1224370081, %T A383367 7957888849,10842382346,11474926944,12230369281,190412616875, %U A383367 497818686976,72899460001,1384334025217,313455536641 %N A383367 a(n) is the least integer k such that A383359(n)^4 can be expressed as a sum of squares of k consecutive integers. %C A383367 Terms of A383654 such that the consecutive integers are all positive. %e A383367 a(2) = 177 because A383359(2)^4 = 295^4 can be expressed as sum of squares of 177 consecutive integers: 295^4 = 6453^2 + 6454^2 + ... + 6628^2 + 6629^2. %Y A383367 Cf. A001032, A189173, A383359, A383654. %K A383367 nonn,more %O A383367 1,1 %A A383367 _Zhining Yang_, May 01 2025 %E A383367 a(11)-a(18) from _Xianwen Wang_, May 04 2025 %E A383367 a(19)-a(20) from _Xianwen Wang_, May 08 2025