1,2

To a very good approximation for n=4,5,6 we have a(n+1) ~ [a(n)]^2$.

N. Reading, Lattice congruences of the weak order.

Cf. A091688.

Sequence in context: A023364 A120952 A083810 this_sequence A000892 A065397 A046846

Adjacent sequences: A091684 A091685 A091686 this_sequence A091688 A091689 A091690

hard,more,nonn

Nathan Reading (nreading(AT)umich.edu), Jan 28 2004