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 A282131 #19 Nov 21 2024 05:12:32 %S A282131 1,2,3,5,6,7,9,11,12,13,15,17,18,20,22,23,25,26,28,30,32,34,35,36,38, %T A282131 40,42,44,45,47,49,52,54,56,57,59,61,63,65,67,68,70,71,73,75,77,79,81, %U A282131 85,86,88,89,91,93,95,97,99,102,104,106,108,110,112,113,115,117,118,120 %N A282131 Records in A240542. %t A282131 (* support function a240542[] is defined in A240542 *) %t A282131 a[n_] := Union[Map[a240542,Range[n]]] %t A282131 a[175] (* data *) %Y A282131 Cf. A240542 with duplicates removed. %Y A282131 Cf. A235791, A237593. %K A282131 nonn %O A282131 1,2 %A A282131 _Hartmut F. W. Hoft_, Feb 06 2017