Home » 4 Parity Patterns

4 Parity Patterns


Primes of the form:

p-1: does not contain parity digit 4

p: prime/ parity digit is 1

p+1: contains parity digit 4

Example:

12: 323
13: 1
14: 34

This pattern seems to follow: Proth primes – https://oeis.org/A080076 from n=2 onwards


Primes of the form:

p-1: parity digits start with 32

p: prime/ parity digit is 1

p+1: parity digits start with 34

Example

16: 322
17: 1
18: 343

This pattern seems to follow: Primes of form 4n + 1 – https://oeis.org/A002144


Primes of the form:

p-1: parity digits start with 34

p: prime/ parity digit is 1

p+1: parity digits start with 32
In addition of using for ED treatment, it is also known as generic viagra rx. More Product Information Pharmacies are often busy and aren’t always cialis prescription able to provide their customers with any additional information they might need. Symptoms:Less genuine purchase viagra from india symptoms may include:* Warmth or redness in your face, neck, or chest; headache; upset stomach; or diarrhea. Defined as ‘inability to gain and keep sufficiently hard erection’, impotence generic cialis tadalafil is a big slap on your manhood.
Example

22: 34
23: 1
24: 3232

This pattern seems to follow: Primes of the form 4n+3.  – https://oeis.org/A002145


Primes of the form:

p: prime/ parity digit is 1

p+1: parity digits are 34

Example

37: 1
38: 34

This pattern seems to follow: Numbers n such that both n and (n+1)/2 are primes – https://oeis.org/A005383 from n=2 onwards


Primes of the form:

p-1: parity digits start with 324

p: prime/ parity digit is 1

p+1: parity digits start with 3

Example

52: 324
53: 1
54: 3434

This pattern seems to follow: Primes of the form 24n + 5.  – https://oeis.org/A107003 from n=2 onwards