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 A385852 #35 Aug 23 2025 16:08:10 %S A385852 79170,150150,158340,161070,232050,237510,300300,316680,322140,395850, %T A385852 450450,464100,468930,474810,475020,483210,554190,570570,600600, %U A385852 622440,633360,641550,644280,696150,712530,750750,791700,805350,937860,949620,950040,963270,966420 %N A385852 Integers x such that there exist two integers 0<x<=y<=z such that psi(x) = psi(y) = psi(z) = x + y + z. %C A385852 The numbers x, y and z form a psi-amicable triple according to Dimitrov's definition. %H A385852 S. I. Dimitrov, <a href="https://arxiv.org/abs/2508.02318">On psi-amicable numbers and their generalizations</a>, arXiv:2508.02318 [math.NT], 2025. %e A385852 79170 is in the sequence since psi(79170) = psi(80850) = psi(81900) = 241920 = 79170 + 80850 + 81900. Other examples: (161070, 161070, 161700), (7063980, 7112490, 7112490). %Y A385852 Cf. A001615, A125490, A323329, A386901, A386933. %K A385852 nonn,new %O A385852 1,1 %A A385852 _S. I. Dimitrov_, Aug 07 2025