158899

Appears in sequences

• a(n) = (F(4*n) - F(n))/2, where F=A000045 (the Fibonacci sequence).at n=7A049672
• Number of ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and w+x+y>=0.at n=34A211612
• Number of length n arrays of permutations of 0..n-1 with each element moved by -4 to 4 places and the total absolute value of displacements not greater than n.at n=13A263935