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%I #7 Sep 11 2021 10:25:17
%S 1,1,1,1,1,2,3,0,1,4,2,3,1,2,6,0,1,5,4,3,2,6,3,0,3,3,8,4,0,8,6,0,1,6,
%T 5,6,4,2,9,0,2,11,6,3,3,8,6,0,1,7,9,6,2,8,12,0,6,6,2,9,0,8,12,0,1,10,
%U 12,3,5,12,6,0,4,5,14,7,3,12,6,0,2
%N Number of compositions (ordered partitions) of n into at most 3 squares.
%H <a href="/index/Su#ssq">Index entries for sequences related to sums of squares</a>
%F a(n) = Sum_{k=0..3} A337165(n,k). - _Alois P. Heinz_, Sep 10 2021
%Y Cf. A000290, A002654, A006456, A063691, A337165, A347711, A347712, A347713.
%K nonn
%O 0,6
%A _Ilya Gutkovskiy_, Sep 10 2021