|
| |
|
|
A076498
|
|
Class number h(p) of real quadratic field Q(sqrt(p)) where p is n-th prime == 1 mod 4.
|
|
1
| |
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,22
|
|
|
REFERENCES
| H. Williams and H. te Riele, New computations concerning the Cohen-Lenstar heuristics, Experiment. Math. 12 (2003), no. 1, 99-113.
|
|
|
EXAMPLE
| h(p) = 1 for p < 229, h(229) = h(257) = h(733) = h(761) = 3, h(401)=5 and h(577)=7, ...
|
|
|
CROSSREFS
| Cf. A002144, A076499.
Sequence in context: A104443 A103496 A124921 * A110268 A058965 A090623
Adjacent sequences: A076495 A076496 A076497 * A076499 A076500 A076501
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Nov 11 2002
|
| |
|
|
