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A077458 a(n) = (a(n-1)*a(n-2) + a(n-2)*a(n-3) + 1)/a(n-4). 3

%I

%S 1,1,1,1,3,5,19,111,735,16739,651829,98407827,87287056369,

%T 513160504664273,68717836252612920369,358338159175285830378865425,

%U 282106236246621697477649374210221427

%N a(n) = (a(n-1)*a(n-2) + a(n-2)*a(n-3) + 1)/a(n-4).

%H Seiichi Manyama, <a href="/A077458/b077458.txt">Table of n, a(n) for n = 1..28</a>

%K nonn

%O 1,5

%A _Benoit Cloitre_, Nov 30 2002

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Last modified January 26 19:45 EST 2021. Contains 340442 sequences. (Running on oeis4.)