|
%I #3 Sep 02 2015 13:39:37
%S 1,63,33277642
%N Number of hyperrings of order n.
%D R. Bayon and N. Lygeros, The Hyperrings of Order 3.
%D Th. Vougiouklis, Hyperstructures and their Representations. Hadronic Press, (1994).
%D Th. Vougiouklis, The fundamental relation in hyperrings, the general hyperfield. Fourth INT. Congress on AHA (1990), pp. 203-211.
%H R. Bayon, N. Lygeros, <a href="https://cs.uwaterloo.ca/journals/JIS/VOL11/Bayon/bayon4.html">The hyperrings of order 3</a>, JIS 11 (2008) 08.3.2
%Y Cf. A108089, A132590.
%K hard,nonn,bref
%O 1,2
%A Roman Bayon (roman.bayon(AT)gmail.com), Aug 28 2007
|
