486716

Appears in sequences

• a(n) = a(n-1) + a(n-5); a(0) = ... = a(4) = 1.at n=49A003520
• a(1)=1; a(n)=sum(u=1,n-1,sum(v=1,u,sum(w=1,v,sum(x=1, w,sum(y=1,x,a(y)))))).at n=10A079675