Corresponds to m = 3 in a family of 4th order linear recurrence sequences given by a(m,n) = m^4*a(n-4) + (2*m)^2*a(n-3) - 4*a(m-1), a(m,0) = -1, a(m,1) = 4, a(m,2) = -13 + 6*(m-1) + 3*(m-1)^2, a(m,3) = (-8+m^2)^2.
1, 4, 11, 1, 59, 484, 1009, 6241, 2761, 13924, 87251, 57121, 49139, 4072324
2 seqfan posts
Fri Nov 20 22:19:27 CET 2009 [seqfan] Independent confirmation of floretion iteration for A113249, and (almost) A090390