%I A014420
%S A014420 0,1,1,2,2,1,2,2,3,3,2,3,3,4,1,2,2,3,3,2,3,3,4,4,3,4,4,5,2,3,3,4,4,
%T A014420 3,4,4,5,5,4,5,5,6,1,2,2,3,3,2,3,3,4,4,3,4,4,5,2,3,3,4,4,3,4,4,5,5,
%U A014420 4,5,5,6,3,4,4,5,5,4,5,5,6,6,5,6,6,7,2,3,3,4,4,3,4,4,5,5,4,5,5,6,3
%N A014420 Minimum number of Catalan numbers to represent n.
%Y A014420 Cf. A014418.
%Y A014420 Sequence in context: A143999 A137419 A057536 this_sequence A029289 A029328 
               A109831
%Y A014420 Adjacent sequences: A014417 A014418 A014419 this_sequence A014421 A014422 
               A014423
%K A014420 nonn,easy
%O A014420 0,4
%A A014420 Olivier Gerard (olivier.gerard(AT)gmail.com)