|
Search: id:A007500
|
|
|
| A007500 |
|
"Palindromic" primes: primes whose reversal is prime (the name is not accurate but was used by Wells).
(Formerly M0657)
|
|
+0
18
|
|
| 2, 3, 5, 7, 11, 13, 17, 31, 37, 71, 73, 79, 97, 101, 107, 113, 131, 149, 151, 157, 167, 179, 181, 191, 199, 311, 313, 337, 347, 353, 359, 373, 383, 389, 701, 709, 727, 733, 739, 743, 751, 757, 761, 769, 787, 797, 907, 919, 929, 937, 941, 953, 967, 971, 983
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
The numbers themselves need not be palindromes.
|
|
REFERENCES
|
D. Wells, The Penguin Dictionary of Curious and Interesting Numbers. Penguin Books, NY, 1986, 134.
|
|
LINKS
|
T. D. Noe, Table of n, a(n) for n=1..10000
|
|
MATHEMATICA
|
Select[ Prime[ Range[ 168 ] ], PrimeQ[ FromDigits[ Reverse[ IntegerDigits[ # ] ] ] ]& ] (from Zak Seidov, corrected by T. D. Noe)
|
|
CROSSREFS
|
Cf. A006567, A007628.
Cf. A002385 (primes that are palindromes in base 10)
Adjacent sequences: A007497 A007498 A007499 this_sequence A007501 A007502 A007503
Sequence in context: A086498 A055387 A061461 this_sequence A069706 A090933 A107845
|
|
KEYWORD
|
base,nonn,nice
|
|
AUTHOR
|
njas, Robert G. Wilson v (rgwv(AT)rgwv.com)
|
|
EXTENSIONS
|
More terms from Larry Reeves (larryr(AT)acm.org), Oct 31 2000
|
|
|
Search completed in 0.002 seconds
|
