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 A347777 #7 Sep 13 2021 11:37:34
%S A347777 1,1,2,3,3,3,4,5,6,4,4,5,7,7,6,7,10,9,8,7,11,9,10,9,14,10,10,10,13,11,
%T A347777 10,11,16,13,14,13,22,15,14,15,22,17,16,19,25,20,16,17,26,20,16,15,27,
%U A347777 21,20,15,26,21,22,19,29,23,22,22,30,23,22,23,35,25,26
%N A347777 Number of compositions (ordered partitions) of n into at most 2 squarefree parts.
%t A347777 Table[Length@Flatten[Permutations/@IntegerPartitions[n,2,Select[Range@n,SquareFreeQ]],1],{n,0,100}] (* _Giorgos Kalogeropoulos_, Sep 13 2021 *)
%Y A347777 Cf. A005117, A098235, A280194, A347778, A347779, A347780.
%K A347777 nonn
%O A347777 0,3
%A A347777 _Ilya Gutkovskiy_, Sep 13 2021