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A055061 LCM of (2^d - 1) where d runs over the degrees of irreducible factors of x^n + x + 1 over GF(2), divided by A046932(n). 2
1, 1, 1, 1, 1, 1, 1, 7, 1, 1, 1, 1, 1, 1, 1, 15, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 15, 1, 99, 1, 1, 31, 21, 7, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 1, 17, 1, 3, 1, 1, 1, 19, 1, 1, 1, 1, 1, 3, 1, 1, 1, 63, 1, 1, 1, 1, 1, 1, 1, 7, 1, 1, 1, 5, 3, 1, 1, 1, 1, 1, 1, 3, 3, 1, 1, 1, 1, 3, 5, 1, 1, 1, 1, 1, 91, 127, 7 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,8

LINKS

Max Alekseyev, Table of n, a(n) for n = 2..1223

L. Bartholdi, Lamps, factorizations and finite fields, Amer. Math. Monthly, 107 (No. 5, 2000), 429-436.

CROSSREFS

Cf. A046932.

Sequence in context: A319101 A239700 A304906 * A074465 A081229 A109010

Adjacent sequences:  A055058 A055059 A055060 * A055062 A055063 A055064

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jun 11 2000

EXTENSIONS

Edited and extended by Max Alekseyev, Oct 19 2011

b-file extended by Max Alekseyev, Aug 17 2015

STATUS

approved

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Last modified November 20 21:03 EST 2019. Contains 329348 sequences. (Running on oeis4.)