1,1

The number of most-perfect magic squares of order 2^m where m>=2.

The next term is too large to include here.

Table of n, a(n) for n=1..6.

f:=m->2^(2^m)*( (2^(m-1))! )^2*binomial(2*m, m);

A subsequence of A151932. Cf. A051235.

Sequence in context: A067624 A096204 A153836 * A085806 A042115 A159515

Adjacent sequences: A151938 A151939 A151940 * A151942 A151943 A151944

nonn

N. J. A. Sloane, Aug 12 2009, based on email from Reinhardt Wiewe.

approved