This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A046233 #21 Aug 11 2024 14:36:36 %S A046233 0,1,6,26,126,626,3126,15626,78126,390626,1953126,9765626,48828126, %T A046233 244140626,1220703126,6103515626,30517578126,152587890626, %U A046233 762939453126,3814697265626,19073486328126,95367431640626,476837158203126 %N A046233 Numbers whose cube is palindromic in base 5. %C A046233 Note that '626' is itself palindromic. %C A046233 Contains all A034474(n), n>=1, as a subset because (5^n+1)^3=5^(3n)+3*5^(2n)+3*5^n+1 is a symmetric string 100..00300..00300..001 in base 5. [_R. J. Mathar_, Jul 31 2008] %H A046233 Patrick De Geest, <a href="https://www.worldofnumbers.com/nobase10pg4.htm">World!Of Numbers</a>, Palindromic cubes in bases 2 to 17. %o A046233 (PARI) isok(k) = my(d=digits(k^3, 5)); Vecrev(d) == d; \\ _Michel Marcus_, Aug 02 2022 %o A046233 (Python) %o A046233 from itertools import count, islice %o A046233 from sympy.ntheory import is_palindromic as ispal %o A046233 def agen(start=0): yield from (k for k in count(start) if ispal(k**3, 5)) %o A046233 print(list(islice(agen(), 10))) # _Michael S. Branicky_, Aug 02 2022 %Y A046233 Cf. A034474, A046234. %K A046233 nonn,base,more %O A046233 1,3 %A A046233 _Patrick De Geest_, May 15 1998 %E A046233 More terms from Megan Francis (mkf5011(AT)psu.edu), Nov 15 2005