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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A109936 Composite numbers between largest n-digit prime and the smallest (n+1) digit prime. 1
8, 9, 10, 98, 99, 100, 998, 999, 1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 9974, 9975, 9976, 9977, 9978, 9979, 9980, 9981, 9982, 9983, 9984, 9985, 9986, 9987, 9988, 9989, 9990, 9991, 9992, 9993, 9994, 9995, 9996, 9997, 9998, 9999, 10000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..44.

MATHEMATICA

Flatten[Table[Range[NextPrime[10^n, -1]+1, NextPrime[10^n]-1], {n, 5}]] (* Harvey P. Dale, Nov 03 2011 *)

CROSSREFS

Sequence in context: A048020 A048000 A048081 * A114460 A120201 A188056

Adjacent sequences:  A109933 A109934 A109935 * A109937 A109938 A109939

KEYWORD

base,easy,nonn

AUTHOR

Amarnath Murthy, Jul 19 2005

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified June 28 20:39 EDT 2017. Contains 288840 sequences.