%I #22 Aug 06 2020 01:05:10
%S 0,1,4,9,16,25,36,49,64,81,0,11,24,39,56,75,96,119,144,171,0,42,88,
%T 138,192,250,312,378,448,522,0,93,192,297,408,525,648,777,912,1053,0,
%U 164,336,516,704,900,1104,1316,1536,1764,0,255,520,795,1080,1375,1680,1995
%N a(n) = product of n and all its digits.
%H Vincenzo Librandi, <a href="/A098736/b098736.txt">Table of n, a(n) for n = 0..1000</a>
%H <a href="/index/Coi#Colombian">Index entries for Colombian or self numbers and related sequences</a>
%F If n=abcd (say) in decimal, then a(n) = abcd * a * b * c * d.
%F a(n) = n*A007954(n). - _R. J. Mathar_, Sep 27 2013
%e a(15) = 15*1*5=75
%p with transforms; [seq(n*digprod(n), n=0..200)]; # _N. J. A. Sloane_, Oct 12 2013
%t Array[# Times@@ IntegerDigits@#&, 60, 0] (* _Vincenzo Librandi_, Oct 13 2013 *)
%o (PARI) a(n) = vecprod(digits(n))*n; \\ _Michel Marcus_, Aug 06 2020
%Y Cf. A007954, A230101.
%K base,easy,nonn
%O 0,3
%A _Alexandre Wajnberg_, Sep 30 2004
%E More terms from _Sam Alexander_, Jan 06 2005
%E Corrected by _Vincenzo Librandi_, Oct 13 2013