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Number of near-rings with identity of order n, up to isomorphism.
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%I #48 Jan 09 2023 06:54:04

%S 1,1,6,1,1,1,53,11,1,1,11,1,1,1,4274,1,26,1

%N Number of near-rings with identity of order n, up to isomorphism.

%C a(2) - a(19) were generated by Mace4 with the cube-and-conquer and the invariant algorithms.

%D G. Pilz, Near-rings: The Theory and Its Applications, Elsevier, 1977.

%H MathStructures, <a href="https://math.chapman.edu/~jipsen/structures/doku.php?id=near-rings_with_identity">Near-rings with identity</a>.

%Y Cf. A305858 and A037221 for various sequences related to near-rings.

%K nonn,more

%O 2,3

%A _Choiwah Chow_, Dec 17 2022