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 A276338 #7 Sep 01 2016 10:54:57 %S A276338 0,4,8,12,18,18,18,18,36,36,36,36,54,54,54,54,72,72,96,96,96,96,96,96, %T A276338 96,96,96,96,96,96,96,96,96,96,96,96,192,192,192,192,192,192,192,192, %U A276338 192,192,192,192,192,192,192,192,192,192,288,288,288,288,288,288,288,288,288,288,288,288,288,288,288,288,288,288,384 %N A276338 a(n) = A276333(n) * A001563(1+A258198(n)). %C A276338 a(n) is obtained by first replacing with zeros all other digits except the leftmost (the most significant) in the greedy A001563-base representation of n (A276326), then appending an extra zero to the right, then converting back to decimal. %C A276338 An auxiliary function for computing A276340. %H A276338 Antti Karttunen, <a href="/A276338/b276338.txt">Table of n, a(n) for n = 0..4320</a> %F A276338 a(n) = A276333(n) * A001563(1+A258198(n)). %F A276338 Other identities. For all n >= 0: %F A276338 a(n) = A276340(A276334(n)). %o A276338 (Scheme) (define (A276338 n) (* (A001563 (+ 1 (A258198 n))) (A276333 n))) %Y A276338 Cf. A001563, A258198, A276326, A276333, A276334, A276340. %K A276338 nonn,base %O A276338 0,2 %A A276338 _Antti Karttunen_, Sep 01 2016