**a(n) = (a(n-1)^2+a(n-2)^2+a(n-3)^2+a(n-1)*a(n-2)+a(n-1)*a(n-3)+a(n-2)*a(n-3))/a(n-4) with four initial ones.**

*1, 1, 1, 1, 6, 51, 3001, 9180001, 14050074147451, 3870680638643416483474006*

*6 seqfan posts*

*Sun Oct 4 15:03:08 CEST 2009* [seqfan] Re: A family of quadratic recurrences

*Thu Oct 1 16:53:06 CEST 2009* [seqfan] Re: A family of quadratic recurrences

*Thu Oct 1 11:53:46 CEST 2009* [seqfan] Re: A family of quadratic recurrences

*Thu Oct 1 01:06:52 CEST 2009* [seqfan] Re: A family of quadratic recurrences

*Wed Sep 30 21:24:26 CEST 2009* [seqfan] Re: A family of quadratic recurrences

*Wed Sep 30 19:31:55 CEST 2009* [seqfan] A family of quadratic recurrences

Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword

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