login
Cubes which are palindromes in base 9.
1

%I #14 Aug 11 2024 14:28:59

%S 0,1,8,1000,54872,551368,753571,389017000,282558696328,293151929707,

%T 205901592625000,150095482587202888,150714005985636211,

%U 109419057761904073000,79766448635933205559048,79802927193348078816187

%N Cubes which are palindromes in base 9.

%H Patrick De Geest, <a href="https://www.worldofnumbers.com/nobase10pg4.htm">World!Of Numbers</a>, Palindromic cubes in bases 2 to 17.

%F a(n) = A046241(n)^3. - _Andrew Howroyd_, Aug 10 2024

%t Select[Range[0,44*10^6]^3,IntegerDigits[#,9]==Reverse[ IntegerDigits[ #,9]]&] (* _Harvey P. Dale_, Oct 09 2016 *)

%Y Intersection of A029955 and A000578.

%Y Cf. A046241.

%K nonn,base

%O 1,3

%A _Patrick De Geest_, May 15 1998

%E Offset corrected by _Andrew Howroyd_, Aug 10 2024