method2_paleyII {HadamardR}

method2_paleyII

Description

method2_paleyII is internal function not exported.

Usage

method2_paleyII(n)

Arguments

n

integer (order of the matrix)

Details

this function checks q<- (n/4)-1, q is prime number and q = 1(mod 4). if it satisfy it returns q; otherwise returns NULL.

Value

0 or (n/4)-1

References

Paley, R.E.A.C. (1933). On Orthogonal matrices. J. Combin. Theory, A 57(1), 86-108.