A276338 - OEIS

%I #7 Sep 01 2016 10:54:57

%S 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 96,96,96,96,96,96,96,96,96,96,96,96,192,192,192,192,192,192,192,192,

%U 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 a(n) = A276333(n) * A001563(1+A258198(n)).

%C 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 An auxiliary function for computing A276340.

%H Antti Karttunen, <a href="/A276338/b276338.txt">Table of n, a(n) for n = 0..4320</a>

%F a(n) = A276333(n) * A001563(1+A258198(n)).

%F Other identities. For all n >= 0:

%F a(n) = A276340(A276334(n)).

%o (Scheme) (define (A276338 n) (* (A001563 (+ 1 (A258198 n))) (A276333 n)))

%Y Cf. A001563, A258198, A276326, A276333, A276334, A276340.

%K nonn,base

%O 0,2

%A _Antti Karttunen_, Sep 01 2016