Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A102270
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A102270 2-class number of Q(sqrt(-21p)) as p runs through primes in A102269. +0
2
16, 8, 8, 8, 16, 8, 16, 16, 16, 8, 16, 32, 8, 8, 8, 8, 32, 8, 16, 64, 32, 8, 32, 8, 8, 128 (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-A102275.

Sequence in context: A028579 A007263 A033336 this_sequence A102272 A083536 A040243

Adjacent sequences: A102267 A102268 A102269 this_sequence A102271 A102272 A102273

KEYWORD

nonn

AUTHOR

njas, Feb 19 2005

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified August 28 22:44 EDT 2008. Contains 143251 sequences.


AT&T Labs Research