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 A278238 #17 Jan 11 2024 13:27:42 %S A278238 1,4,4,16,16,36,4,64,36,144,4,144,4,36,64,256,256,900,4,1296,16,36,36, %T A278238 576,4,36,144,144,36,576,4,1024,36,2304,36,3600,4,36,144,5184,4,144, %U A278238 36,144,576,900,4,2304,36,36,1024,144,36,3600,4,576,144,900,4,5184,4,36,144 %N A278238 a(n) = A278233(A000695(n)) = A278233(n)^2. %H A278238 Antti Karttunen, <a href="/A278238/b278238.txt">Table of n, a(n) for n = 1..256</a> %H A278238 <a href="/index/Eu#epf">Index entries for sequences computed from exponents in factorization of n</a> %H A278238 <a href="/index/Ge#GF2X">Index entries for sequences operating on polynomials in ring GF(2)[X]</a> %F A278238 a(n) = A278233(A000695(n)). %F A278238 a(n) = A278233(n)^2. %o A278238 (Scheme) (define (A278238 n) (A278233 (A000695 n))) %Y A278238 Cf. A048720, A000695, A278233, A278239, A278254. %K A278238 nonn %O A278238 1,2 %A A278238 _Antti Karttunen_, Nov 17 2016