1,2

In primitive dimensions, Hadamard matrices cannot be obtained as tensor products of Hadamard matrices of lower dimensions.

Cf. A007299, A136724.

Sequence in context: A067762 A137311 A032407 this_sequence A023534 A121859 A096108

Adjacent sequences: A136722 A136723 A136724 this_sequence A136726 A136727 A136728

nonn

Artur Jasinski (grafix(AT)csl.pl), Jan 19 2008