

A079202


Number of isomorphism classes of nonassociative noncommutative nonantiassociative nonanticommutative closed binary operations on a set of order n, listed by class size.


9



0, 0, 0, 0, 0, 32, 2155, 0, 0, 0, 12, 60, 184, 34544, 147032271
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OFFSET

1,6


COMMENTS

Elements per row: 1,2,4,8,16,30,... (given by A027423, number of positive divisors of n!)
First four rows: 0; 0,0; 0,0,32,2155; 0,0,0,12,60,184,34544,147032271
A079230(x) is equal to the sum of the products of each element in row x of this sequence and the corresponding element of A079210.
The sum of each row x of this sequence is given by A079231(x).


LINKS



CROSSREFS



KEYWORD

nonn,tabf


AUTHOR

Christian van den Bosch (cjb(AT)cjb.ie), Jan 03 2003


STATUS

approved



