login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A173619 Differences between consecutive pseudoprimes to base 2. 1
220, 84, 460, 282, 342, 176, 142, 418, 236, 120, 456, 756, 336, 2, 310, 780, 1140, 1356, 364, 160, 430, 1350, 324, 720, 1496, 940, 6, 234, 510, 1218, 132, 864, 2000, 16, 1230, 3050, 376, 2384, 3580, 780 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

This are the differences between the numbers in sequence A001567.

LINKS

Karl K. Hovekamp, Table of n, a(n) for n = 1..101628

EXAMPLE

341, 561, 645, 1105, .... (sequence A001567)

abs(341-561)=220

abs(561-645)=84

abs(645-1105)=460

....

CROSSREFS

Cf. A001567.

Sequence in context: A200827 A286441 A285889 * A157645 A157673 A064477

Adjacent sequences:  A173616 A173617 A173618 * A173620 A173621 A173622

KEYWORD

nonn

AUTHOR

Karl Hovekamp, Feb 22 2010

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 19 08:23 EDT 2019. Contains 325155 sequences. (Running on oeis4.)