49324

Appears in sequences

• G.f.: -2*(-2 - 11*x - 4*x^2 + x^3)/(x - 1)^4.at n=20A152110
• Number of (2+1) X (n+1) arrays of permutations of 0..n*3+2 with each element having directed index change 2,-2 -1,0 -1,2 1,0 or 0,-1.at n=10A264380
• Number of set partitions of [n] such that the difference between each element and its index (in the partition) is a multiple of four.at n=16A274861