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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A046893 a(n) has exactly n permutations of digits that are primes. 0
1, 2, 13, 103, 107, 1007, 1036, 1019, 1013, 1049, 1079, 1237, 10099, 10013, 10135, 10123, 10039, 10127, 10079, 10238, 10234, 10235, 10139, 10478, 12349, 12347, 10378, 12359, 14579, 10789, 100336, 10237, 12389, 23579, 10279, 100136, 12379 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..36.

MATHEMATICA

a = Table[0, {40}]; Do[b = Count[ PrimeQ[ FromDigits /@ Permutations[ IntegerDigits[n]]], True]; If[b < 40 && a[[b + 1]] == 0, a[[b + 1]] = n; Print[b, " ", n]], {n, 1, 110000}]

CROSSREFS

Cf. A039999.

Sequence in context: A266906 A107000 A046891 * A126036 A113598 A125589

Adjacent sequences:  A046890 A046891 A046892 * A046894 A046895 A046896

KEYWORD

nonn,base

AUTHOR

David W. Wilson

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 November 14 04:40 EST 2019. Contains 329108 sequences. (Running on oeis4.)