

A074011


Number of elements of GF(5^n) with trace 1 and subtrace 2.


7




OFFSET

1,2


COMMENTS

Same as the number of elements of GF(5^n) with trace 2 and subtrace 3. Same as the number of elements of GF(5^n) with trace 3 and subtrace 3. Same as the number of elements of GF(5^n) with trace 4 and subtrace 2.


LINKS

Table of n, a(n) for n=1..7.
F. Ruskey, Number of Elements of GF(5^n) with given trace and subtrace


EXAMPLE

a(2;4,2)=2. Let GF(5^2) be defined by the field extension GF(5)[x]/( 2+b+b^2 ). The two elements of GF(5^2) with trace 4 and subtrace 2 are { b, 4+4b }.


CROSSREFS

Cf. A074006, A074007, A074008, A074009, A074010, A074012, A074013.
Sequence in context: A321442 A005693 A158419 * A054235 A016547 A081541
Adjacent sequences: A074008 A074009 A074010 * A074012 A074013 A074014


KEYWORD

nonn,more


AUTHOR

Frank Ruskey and Nate Kube, Aug 19 2002


STATUS

approved



