|
Search: id:A125001
|
|
|
| A125001 |
|
Non-insertable primes: primes with property that no matter where you insert (or prepend or append) a digit you get a composite number (except for prepending a zero). |
|
+0
1
|
|
| 369293, 3823867, 5364431, 5409259, 7904521, 8309369, 9387527, 9510341, 22038829, 27195601, 28653263, 38696543, 39091441, 39113161, 43744697, 45095839, 45937109, 48296921, 48694231, 49085093, 49106677, 50791927
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
LINKS
|
David W. Wilson, Table of n, a(n) for n = 1..1000
|
|
EXAMPLE
|
369293 is a member because all of 1369293, 2369293, 3369293, ..., 3069293, 3169293, ..., 3692930, ..., 3692939 are composite.
|
|
CROSSREFS
|
Sequence in context: A160319 A071551 A156115 this_sequence A017537 A043661 A147770
Adjacent sequences: A124998 A124999 A125000 this_sequence A125002 A125003 A125004
|
|
KEYWORD
|
nonn,base
|
|
AUTHOR
|
David W. Wilson (davidwwilson(AT)comcast.net), Jan 08 2007
|
|
|
Search completed in 0.029 seconds
|
