A230870 Class numbers h-tilde_n^{+} corresponding to the primes listed in A230869.

4, 11, 3, 3, 4, 7, 16, 4, 45, 5, 8, 27, 4, 7, 4, 11, 495, 16, 3, 3, 11, 8, 47, 4, 5, 49, 16, 16, 71, 5, 28, 13, 7, 5, 224, 19, 3, 211, 275, 3, 7, 4, 5, 247, 57, 7, 7, 17, 4, 42, 4, 7, 11, 25, 4, 49, 3, 4, 7, 7, 25, 27, 37, 4, 5, 16, 3, 4

Offset: 1

Author

N. J. A. Sloane, Nov 06 2013

Keywords

• nonn

Comments

Taken from the "Main Table" of Schoof.

There is a very slight chance that a(n) is only a proper divisor of the actual class number (see the Schoof and Miller articles for details).

Links

• John C. Miller, Class numbers of totally real fields and applications to the Weber class number problem, arXiv:1405.1094 [math.NT], 2014.
• John C. Miller, Real cyclotomic fields of prime conductor and their class numbers, arXiv:1407.2373 [math.NT], 2014.
• Rene Schoof, Class numbers of real cyclotomic fields of prime conductor, Math. Comp., 72 (2002), 913-937.

Crossrefs

Cf. A230869.