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 A278497 #8 Nov 27 2016 22:07:17 %S A278497 2,6,8,2,6,16,12,6,24,8,30,32,6,6,24,2,12,48,6,2,24,2,12,64,2,30,72, %T A278497 12,30,48,2,6,24,60,6,96,12,30,30,72,48,6,12,120,6,60,128,2,6,24,2,6, %U A278497 144,12,2,24,6,6,96,48,30,120,12,2,48,2,6,30,24,192,30,60,72,6,12,210,6,216,6,6,96,2,30,2,12,240,32,12,24,2,30,256,6,12,120,6,120 %N A278497 a(n) = Least number with the prime signature of A276573(n). %H A278497 Antti Karttunen, <a href="/A278497/b278497.txt">Table of n, a(n) for n = 1..10028</a> %F A278497 a(n) = A046523(A276573(n)). %F A278497 For all n >= 1, a(A260733(1+n)) = A278160(n). %o A278497 (Scheme) (define (A278497 n) (A046523 (A276573 n))) %Y A278497 Cf. A002828, A046523, A260733, A276573, A278160, A278498, A278499. %Y A278497 Cf. A277014 (gives the indices of squares). %Y A278497 Cf. also A278232. %K A278497 nonn %O A278497 1,1 %A A278497 _Antti Karttunen_, Nov 25 2016