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).

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

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: A336699 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