cp's OEIS Frontend

A182779 a(n) = A049019(n) * A118851(n). Irregular table read by rows.

%I A182779 #22 May 31 2020 21:59:02
%S A182779 1,1,2,2,3,12,6,4,24,24,72,24,5,40,120,180,360,480,120,6,60,240,180,
%T A182779 360,2160,720,1440,4320,3600,720,7,84,420,840,630,5040,3780,7560,3360,
%U A182779 30240,20160,12600,50400,30240,5040
%N A182779 a(n) = A049019(n) * A118851(n). Irregular table read by rows.
%C A182779 The sequences have shape A000041 and their respective row sums are A000670, A006906 and A006153.
%F A182779 a(n) = A049019(n) * A118851(n).
%e A182779 For n = 3 the values are (3,12,6) = (1,6,6)*(3,2,1).
%e A182779 Table starts:
%e A182779 1;
%e A182779 1;
%e A182779 2, 2;
%e A182779 3, 12, 6;
%e A182779 4, (24, 24), 72, 24;
%e A182779 5, (40, 120), (180, 360), 480, 120;
%e A182779 6, (60, 240, 180), (360, 2160, 720), (1440, 4320), 3600, 720;
%e A182779 7, (84, 420, 840), (630, 5040, 3780, 7560), (3360, 30240, 20160), (12600, 50400), 30240, 5040;
%Y A182779 Cf. A006153 (related to function composition), A133314 (signed version of A049019).
%K A182779 nonn,tabf
%O A182779 0,3
%A A182779 _Alford Arnold_, Dec 01 2010
%E A182779 a(0) = 1 prepended by _Peter Luschny_, May 31 2020