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A113493
Digits of the concatenation of the first palindromic primes.
1
2, 3, 5, 7, 1, 1, 1, 0, 1, 1, 3, 1, 1, 5, 1, 1, 8, 1, 1, 9, 1, 3, 1, 3, 3, 5, 3, 3, 7, 3, 3, 8, 3, 7, 2, 7, 7, 5, 7, 7, 8, 7, 7, 9, 7, 9, 1, 9, 9, 2, 9, 1, 0, 3, 0, 1, 1, 0, 5, 0, 1, 1, 0, 6, 0, 1, 1, 1, 3, 1, 1, 1, 1, 4, 1, 1, 1, 2, 4, 2, 1, 1, 2, 7, 2, 1, 1, 2, 8, 2, 1, 1, 3, 3, 3, 1, 1, 3, 8, 3, 1, 1, 3, 9, 3
OFFSET
1,1
LINKS
EXAMPLE
The sequence of palindromic primes (A002385) begins with 2, 3, 5, 7, 11, 101, 131, 151, 181, 191, 313, 353, 373, 383, 727, 757, 787, 797, ...; concatenating them gives the digit string 235711101131151181191313353373383727757787797..., whose digits are the terms of this sequence.
MATHEMATICA
Flatten[IntegerDigits/@Select[Prime[Range[3000]], PalindromeQ]] (* Harvey P. Dale, Oct 03 2021 *)
CROSSREFS
Cf. A002385.
Sequence in context: A126053 A109905 A230200 * A060420 A077648 A033308
KEYWORD
base,easy,nonn
AUTHOR
Giovanni Teofilatto, Jan 10 2006
EXTENSIONS
Edited by Jon E. Schoenfield, May 07 2021
STATUS
approved