login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A180518 Primes that become a different prime under the mapping 0 <=> 3. 1
37, 101, 107, 109, 131, 137, 139, 307, 311, 317, 337, 347, 359, 367, 379, 389, 397, 401, 409, 431, 439, 601, 631, 709, 739, 809, 839, 907, 937, 1019, 1021, 1031, 1061, 1201, 1231, 1301, 1319, 1321, 1361, 1409, 1439, 1607, 1637, 1801, 1831, 1901, 1931, 2011 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Index to Primes, Primes that become a different prime under some mapping.

MATHEMATICA

fQ[n_] := Block[{id = IntegerDigits@n}, (MemberQ[id, 0] || MemberQ[id, 3]) && PrimeQ[ FromDigits[ id /. {0 -> 3, 3 -> 0}] ]]; Select[ Prime@ Range@ 350, fQ]

dp03Q[n_]:=Module[{c=FromDigits[IntegerDigits[n]/.{0->3, 3->0}]}, c!=n && PrimeQ[ c]]; Select[Prime[Range[350]], dp03Q] (* Harvey P. Dale, Oct 16 2016 *)

CROSSREFS

Cf. A171016, A175791, A180517 thru A180559, A175789, A180560, A180561.

Sequence in context: A142793 A139939 A159231 * A107999 A108160 A044224

Adjacent sequences:  A180515 A180516 A180517 * A180519 A180520 A180521

KEYWORD

base,nonn

AUTHOR

Zak Seidov and Robert G. Wilson v, Sep 09 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 January 17 18:02 EST 2020. Contains 330987 sequences. (Running on oeis4.)