|
| |
|
|
A069678
|
|
Primes with either no internal digits or all internal digits are 3.
|
|
9
|
|
|
|
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 131, 137, 139, 233, 239, 331, 337, 431, 433, 439, 631, 733, 739, 839, 937, 2333, 2339, 3331, 4337, 4339, 5333, 6337, 7331, 7333, 9337, 13331, 13337, 13339, 23333, 23339
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
LINKS
|
Harvey P. Dale, Table of n, a(n) for n = 1..267
|
|
|
MATHEMATICA
|
Join[Prime[Range[25]], Select[Flatten[Table[10FromDigits[PadRight[{n}, k, 3]]+d, {n, 9}, {d, {1, 3, 7, 9}}, {k, 2, 5}]], PrimeQ]]//Sort (* Harvey P. Dale, Aug 08 2020 *)
|
|
|
CROSSREFS
|
Cf. A069675, A069676, A069677, A069679, A069680, A069681, A069682, A069683, A069684.
Sequence in context: A062353 A077390 A069677 * A069679 A069680 A069681
Adjacent sequences: A069675 A069676 A069677 * A069679 A069680 A069681
|
|
|
KEYWORD
|
nonn,base
|
|
|
AUTHOR
|
Amarnath Murthy, Apr 06 2002
|
|
|
EXTENSIONS
|
Offset corrected and name changed by Arkadiusz Wesolowski, Sep 07 2011
|
|
|
STATUS
|
approved
|
| |
|
|
