A285053 Multiplications between idempotent equivalence classes for n X n matrices over GF(2).

1, 4, 118, 27080

Offset

1,2

Comments

With the n X n matrices over GF(2) construct 3-tuples (a,b,c) where a*b = c. Map each of the three elements to their idempotent under self multiplication. Filter on unique 3-tuples.

Links

Table of n, a(n) for n=1..4.

Crossrefs

The idempotents are enumerated in A132186.

Sequence in context: A374676 A365450 A096464 * A264420 A283035 A284764

Adjacent sequences: A285050 A285051 A285052 * A285054 A285055 A285056

Keyword

nonn,more

Author

Chad Brewbaker, Apr 08 2017

Status

approved