The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A284035 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A284035

Upper twin primes which correspond to the hypotenuse in a Pythagorean triple whose short leg is also a prime.
(history; published version)

#27 by N. J. A. Sloane at Mon Jan 29 19:17:26 EST 2024

STATUS

proposed

approved

#26 by Andrew Howroyd at Mon Jan 29 19:10:58 EST 2024

STATUS

editing

proposed

#25 by Andrew Howroyd at Mon Jan 29 19:10:54 EST 2024

COMMENTS

A284034 gives the corresponding short leg primes in the definition.

STATUS

proposed

editing

#24 by Jon E. Schoenfield at Mon Jan 29 18:47:21 EST 2024

STATUS

editing

proposed

#23 by Jon E. Schoenfield at Mon Jan 29 18:47:18 EST 2024

NAME

Upper twin primes which correspond to the hypotenuse in a Pythagorean triple whose small short leg is also a prime.

COMMENTS

A284034 gives the corresponding small short leg primes in definition.

EXAMPLE

The prime q = 3121 is in the sequence because q - 2 = 3119 is prime and {79, 3120, 3121} is a Pythagorean triple with prime small short leg (see example in A284034).

STATUS

approved

editing

#22 by Alois P. Heinz at Sun Apr 18 09:06:07 EDT 2021

STATUS

reviewed

approved

#21 by Joerg Arndt at Sun Apr 18 06:05:52 EDT 2021

STATUS

proposed

reviewed

#20 by Michel Marcus at Sun Apr 18 05:14:18 EDT 2021

STATUS

editing

proposed

#19 by Michel Marcus at Sun Apr 18 05:14:15 EDT 2021

EXAMPLE

The prime q = 3121 is in the sequence beacause because q - 2 = 3119 is prime and {79, 3120, 3121} is a Pythagorean triple with prime small leg (see example in A284034).

STATUS

approved

editing

#18 by N. J. A. Sloane at Mon Apr 10 23:47:00 EDT 2017

STATUS

proposed

approved