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A091221 Number of distinct irreducible polynomials dividing n-th GF(2)[X]-polynomial. 13
0, 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 2, 1, 2, 1, 1, 1, 3, 1, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 2, 1, 1, 2, 2, 2, 3, 1, 2, 2, 2, 1, 2, 2, 2, 2, 3, 1, 2, 2, 2, 1, 2, 2, 3, 1, 2, 2, 3, 1, 2, 1, 2, 2, 1, 2, 3, 1, 2, 1, 3, 2, 3, 1, 2, 2, 2, 2, 3, 2, 2, 1, 2, 3, 2, 1, 3, 1, 2, 2, 3, 1, 3, 2, 2, 2, 2, 1, 3, 2, 2, 3, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,6

LINKS

Table of n, a(n) for n=1..102.

A. Karttunen, Scheme-program for computing this sequence.

Index entries for sequences operating on GF(2)[X]-polynomials

CROSSREFS

a(n) = A001221(A091203(n)) = A001221(A091205(n)). A000374(n) = a(A000051(n)).

Sequence in context: A177025 A265210 A023396 * A106495 A100428 A206719

Adjacent sequences:  A091218 A091219 A091220 * A091222 A091223 A091224

KEYWORD

nonn

AUTHOR

Antti Karttunen, Jan 03 2004

STATUS

approved

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Last modified August 17 15:28 EDT 2018. Contains 313816 sequences. (Running on oeis4.)