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A102275 2-class number of Q(sqrt(-21p)) as p runs through primes in A102274. +0
7
8, 32, 8, 8, 8, 32, 64, 8, 16, 16, 64, 8, 16, 16, 16, 8, 32, 8, 6, 8, 32, 8, 16, 8 (list; graph; listen)
OFFSET

1,1

REFERENCES

Cohn, H. and Lagarias, J. C., On the existence of fields governing the 2-invariants of the classgroup of Q(sqrt{dp}) as p varies, Math. Comp. 41 (1983), 711-730.

CROSSREFS

Cf. A102269-A102274.

Sequence in context: A034556 A121097 A121093 this_sequence A115948 A059880 A144096

Adjacent sequences: A102272 A102273 A102274 this_sequence A102276 A102277 A102278

KEYWORD

nonn

AUTHOR

njas, Feb 19 2005

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Last modified November 30 22:12 EST 2008. Contains 150989 sequences.


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