id:A037291 - OEIS Search Results

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Number of rings with 1 containing n elements.

+0
6

1, 1, 1, 4, 1, 1, 1, 11, 4, 1, 1, 4, 1, 1, 1, 50, 1, 4, 1, 4, 1, 1, 1, 11, 4, 1, 12, 4, 1, 1, 1, 208, 1, 1, 1, 16, 1, 1, 1, 11, 1, 1, 1, 4, 4, 1, 1, 50, 4, 4, 1, 4, 1, 11, 1, 11, 1, 1, 1, 4, 1, 1, 4 (list; graph; listen)

	OFFSET	`1,4`
	LINKS	`C. Noebauer, Home page`
	CROSSREFS	`Cf. A027623, A037221.` `Sequence in context: A008477 A127707 A113196 this_sequence A063851 A124777 A112622` `Adjacent sequences: A037288 A037289 A037290 this_sequence A037292 A037293 A037294`
	KEYWORD	`nonn,nice,hard`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net), Jun 15 1998.`
	EXTENSIONS	`a(16) and a(32)-A(63) from Christof Noebauer (christof.noebauer(AT)algebra.uni-linz.ac.at), Sep 29, 2000`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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