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 A348636 #27 Nov 04 2021 22:07:19 %S A348636 1,3,8,22,24,65,70,72,194,208,210,215,580,582,623,628,630,644,1738, %T A348636 1740,1745,1867,1869,1883,1888,1890,1931,5212,5214,5219,5233,5235, %U A348636 5600,5605,5607,5648,5662,5664,5669,5791,5793,15635,15640,15642,15656,15697,15699 %N A348636 Greedy Cantor's Dust Partition. %C A348636 Starting at 1, consecutively partition the positive integers into sets s(1), s(2), s(3), ... so that no arithmetic sequence of length 3 exists in a set. When choosing s(k), always choose k as small as possible. a(n) = smallest number in s(n). %H A348636 MathPickle, <a href="https://mathpickle.com/project/hare-vs-hare-patterns-algorithm/">Hare vs. Hare</a>, 2017. %F A348636 a(n) = A265316(n) + 1. %e A348636 S(1) = Cantor's dust 1,2,4,5,10,11,13,14,28,29,31,32,... (A003278) %e A348636 S(2) = 3,6,7,12,15,16,19,30,33,34,... %e A348636 S(3) = 8,9,17,18,20,21,35,36,44,... %e A348636 S(4) = 22,23,25,26,49,50,52,53,... %e A348636 S(5) = 24,27,51,54,60,63,64,67,... %e A348636 S(6) = 65,66,68,69,... %e A348636 S(7) = 70,71,... %e A348636 S(8) = 72,... %e A348636 a(1) = min [S(1)] = 1 %e A348636 a(2) = min [S(2)] = 3 %e A348636 a(3) = min [S(3)] = 8 %e A348636 a(4) = min [S(4)] = 22 %e A348636 a(5) = min [S(5)] = 24 %e A348636 a(6) = min [S(6)] = 65 %e A348636 a(7) = min [S(7)] = 70 %e A348636 a(8) = min [S(8)] = 72 %Y A348636 Cf. A003278, A005836. %Y A348636 One more than A265316, which is the first row of A262057. %K A348636 nonn %O A348636 1,2 %A A348636 _Gordon Hamilton_, Oct 28 2021 %E A348636 More terms from _David A. Corneth_, Nov 03 2021 (computed from A265316).