52401

Appears in sequences

• Expansion of (2-x-2*x^2-x^3)/(1-x-x^2)^2.at n=19A102702
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 0), (0, 1, 1), (1, -1, 1), (1, 0, 0), (1, 1, -1)}.at n=8A150637
• Expansion of 1/(1-4*x+2*x^3+x^4).at n=8A195339
• Number of -4..4 arrays of n elements with first and second differences also in -4..4.at n=5A201084
• T(n,k)=Number of -k..k arrays of n elements with first and second differences also in -k..k.at n=41A201088
• Number of -n..n arrays of 6 elements with first and second differences also in -n..n.at n=3A201091