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%I
%S 4,6,9,13,19,28,41,60,88,129,189,277,406,595,872,1278,1873,2745,4023,
%T 5896,8641,12664,18560,27201,39865,58425,85626,125491,183916,269542,
%U 395033,578949,848491,1243524,1822473,2670964,3914488,5736961,8407925,12322413,18059374
%N Pisot sequence P(4,6).
%F a(n) = a(n-1) + a(n-3) (Checked up to n = 1000)
%Y Subsequence of A000930. See A008776 for definitions of Pisot sequences.
%K nonn
%O 0,1
%A _David W. Wilson_
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