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 A380177 #16 Feb 01 2025 08:46:07 %S A380177 38,39,42,51,52,55,56,57,61,66,70,71,75,79,83,84,87,88,89,93,99,102, %T A380177 103,106,107,111,115,118,119,123,124,127,129,132,133,136,139,140,143, %U A380177 146,147,150,151,152,155,156,159,162,163,166,167,168,171,172,175,176,177,180 %N A380177 Numbers that can be written as sum of distinct squares but not if the squares are taken greedily. %C A380177 Numbers in A003995 but not in A380175. %H A380177 Hugh Montgomery and Ulrike Vorhauer, <a href="https://doi.org/10.1090/S0025-5718-03-01513-8">Greedy sums of distinct squares</a>, Mathematics of computation 73.245 (2004): 493-513. %e A380177 38 is in the list as 38 = 5^2 + 3^2 + 2^2, all distinct; but if taken greedily 38 = 6^2 + 1^2 + 1^2, not distinct. Greedily in the sense that 6^2 < 38 < 7^2 etc. %Y A380177 Cf. A003995, A380175. %K A380177 nonn %O A380177 1,1 %A A380177 _Mike Sheppard_, Jan 14 2025