The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A244030 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing all changes.

A244030

Composite numbers n such that the quadratic form x^2+n*y^2 does not represent a prime strictly between n and 2n.
(history; published version)

#6 by N. J. A. Sloane at Sun Jun 22 12:13:10 EDT 2014

STATUS

editing

approved

#5 by N. J. A. Sloane at Sun Jun 22 12:13:07 EDT 2014

NAME

Primes p Composite numbers n such that the quadratic form x^2+pn*y^2 does not represent a prime strictly between p n and 2p2n.

CROSSREFS

Cf. A244030, A244029, A244031.

#4 by N. J. A. Sloane at Sun Jun 22 12:12:09 EDT 2014

NAME

q

Primes p such that the quadratic form x^2+p*y^2 does not represent a prime strictly between p and 2p.

LINKS

William C. Jagy and Irving Kaplansky, <a href="/A244019/a244019.pdf">Positive definite binary quadratic forms that represent the same primes</a> [Cached copy]

CROSSREFS

Cf. A244030, A244031.

STATUS

approved

editing

#3 by N. J. A. Sloane at Sun Jun 22 12:11:22 EDT 2014

STATUS

editing

approved

#2 by N. J. A. Sloane at Sun Jun 22 12:11:17 EDT 2014

NAME

allocated for N. J. A. Sloane

q

DATA

8, 24, 26, 35, 56, 68, 119, 120, 125, 134, 185, 194, 206, 290, 314, 326, 341, 356, 371, 404, 464, 489, 524, 545, 626, 635, 671, 698, 699, 749, 755, 815, 914, 978, 1011, 1141, 1161, 1190, 1205, 1232, 1316, 1529, 1595, 1634, 1760, 1784, 2021, 2546, 3419, 3464, 3485, 3561, 3674, 3746, 3806, 4094, 4616, 4904, 6041, 7061, 7556, 8876, 9974, 12326, 17531, 17786, 43181

OFFSET

1,1

KEYWORD

allocated

nonn

AUTHOR

N. J. A. Sloane, Jun 22 2014

STATUS

approved

editing

#1 by N. J. A. Sloane at Tue Jun 17 18:03:59 EDT 2014

NAME

allocated for N. J. A. Sloane

KEYWORD

allocated

STATUS

approved