id:A079029 - OEIS Search Results

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Least k such that the class number of quadratic order of discriminant D=-4k equals p, where p runs through the primes.

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5, 11, 47, 71, 167, 191, 383, 311, 647, 887, 719, 1487, 1151, 1847, 3023, 2711, 2399, 3863, 3719, 5471, 2999, 4391, 3911, 6311, 5519, 5879 (list; graph; listen)

	OFFSET	`1,1`
	PROGRAM	`(PARI) a(p)=if(p<0, 0, k=1; while(abs(p-qfbclassno(-4*k))>0, k++); k)`
	CROSSREFS	`Cf. A000003.` `Sequence in context: A129015 A097056 A092358 this_sequence A106953 A097743 A041213` `Adjacent sequences: A079026 A079027 A079028 this_sequence A079030 A079031 A079032`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 01 2003`

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Last modified September 8 08:06 EDT 2008. Contains 143486 sequences.

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