21680

Appears in sequences

• Number of labeled servers of dimension 20.at n=3A027407
• a(n) = floor( n^Pi ).at n=23A061294
• Number of collinear point triples in an n X n .. X n 4-dimensional cubical grid.at n=4A178268
• Number of collinear point triples in a 5 X 5 X 5 X... n-dimensional cubic grid.at n=4A178298
• Number of partitions of n containing a clique of size 7.at n=44A183564
• Q-residue of A049310 (triangle of coefficients of Fibonacci polynomials), where Q is the triangle given by t(n,k)=k+1 for 0<=k<=n. (See Comments.)at n=10A193663
• Number of nX7 0..1 arrays with no element less than a strict majority of its horizontal and antidiagonal neighbors.at n=2A232046
• T(n,k)=Number of nXk 0..1 arrays with no element less than a strict majority of its horizontal and antidiagonal neighbors.at n=38A232047
• Number of 3Xn 0..1 arrays with no element less than a strict majority of its horizontal and antidiagonal neighbors.at n=6A232049
• Numbers m such that the GCD of the x's that satisfy sigma(x) = m is 3.at n=36A241648
• Number of length 4 1..(n+1) arrays with every leading partial sum divisible by 2, 3 or 5.at n=15A254831
• Aliquot sequence starting at 702.at n=7A269542
• Number of Grassmannian permutations of size n that avoid a pattern, sigma, where sigma is a pattern of size 6 with exactly one descent.at n=20A362193
• a(n) = [x^n] Product_{k=1..n} (x^(k^3) + 1 + 1/x^(k^3)).at n=18A369437