[GAP Forum] semigroup of some order

[jalal molavi]

Dear gap- forum.
I have a question .
Is there any classification about semigroup such as group.
in the other hand how many semigroups are there of size n
where n is natural number.
i need all semigroups of size less than 10.
if any one have usefull information i am very thankful to know that.
Best regards. 


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