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A084092
Prime power decimal palindromes.
9
1, 2, 3, 4, 5, 7, 8, 9, 11, 101, 121, 131, 151, 181, 191, 313, 343, 353, 373, 383, 727, 757, 787, 797, 919, 929, 1331, 10201, 10301, 10501, 10601, 11311, 11411, 12421, 12721, 12821, 13331, 13831, 13931, 14341, 14641, 14741, 15451, 15551, 16061, 16361
OFFSET
1,2
LINKS
Eric Weisstein's World of Mathematics, Palindromic Prime.
Eric Weisstein's World of Mathematics, Prime Power.
EXAMPLE
121=A000961(42)=A002113(21), therefore 121 is a term;
131=A000961(46)=A002113(22), therefore 131 is a term.
MATHEMATICA
Join[{1}, Select[Range[16370], Reverse[x = IntegerDigits[#]] == x && PrimePowerQ[#] &]] (* Jayanta Basu, Jun 24 2013 *)
Join[{1}, Select[Range[17000], PalindromeQ[#]&&PrimePowerQ[#]&]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Oct 07 2019 *)
CROSSREFS
Intersection of A000961 and A002113, union of A002385 and A084093.
Sequence in context: A098897 A265641 A192140 * A288927 A342513 A086753
KEYWORD
nonn,base
AUTHOR
Reinhard Zumkeller, May 11 2003
EXTENSIONS
Corrected and extended by T. D. Noe, Oct 25 2006
STATUS
approved