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 A062018 #19 Dec 06 2024 21:43:44
%S A062018 1,4,72,652,5213,65664,345328,61277761,984024783,1,116076113582,
%T A062018 6528440016198,352295601578203,61085552860021111,573958083098398734,
%U A062018 61615590737044764481,771467633688162042728,42457573569257080464393
%N A062018 a(n) = n^n written backwards.
%H A062018 Harry J. Smith, <a href="/A062018/b062018.txt">Table of n, a(n) for n = 1..200</a>
%F A062018 a(n) = A004086(n^n).
%e A062018 a(5) = 5213, as 5^5 = 3125.
%p A062018 with(numtheory):for n from 1 to 50 do a := convert(n^n,base,10):b := add(10^(nops(a)- i)*a[i],i=1..nops(a)):printf(`%d,`,b); od:
%t A062018 Table[IntegerReverse[n^n],{n,20}] (* _Harvey P. Dale_, Jul 31 2022 *)
%o A062018 (PARI) a(n) = { fromdigits(Vecrev(digits( n^n )))} \\ _Harry J. Smith_, Jul 29 2009
%Y A062018 Cf. A004086, A004093, A004156, A034906, A004094, A004167, A002108, A002118, A002138, A002140, A002232, A002239, A002241, A002942, A004165, A004087, A004091, A004096, A004098, A004150, A004153.
%K A062018 nonn,base,easy
%O A062018 1,2
%A A062018 _Amarnath Murthy_, Jun 01 2001
%E A062018 More terms from _Jason Earls_ and _Vladeta Jovovic_, Jun 01 2001