1032696

Appears in sequences

• The number of compositions of n which cannot be viewed as stacks.at n=21A115981
• a(n) = 6*a(n-1)-8*a(n-2) for n > 4; a(0)=603, a(1)=4731, a(2)=58834, a(3)=254204, a(4)=1032696.at n=4A177685