OFFSET
1,1
COMMENTS
LINKS
FORMULA
#PSL(m,q) = (Product_{j=0..m-2} (q^m - q^j)) * q^(m-1) / gcd(m,q-1). - Bernard Schott, May 19 2020
EXAMPLE
a(5) = #PSL(2,7) = (7^2-1)*7/gcd(2,6) = 168, and,
a(6) = #PSL(3,2) = (2^3-1)*(2^3-2)*2^2/gcd(3,1) = 168.
CROSSREFS
KEYWORD
nonn
AUTHOR
Michel Marcus, May 19 2020
STATUS
approved