28625

Appears in sequences

• a(n) = n*(11*n^2 - 5)/6.at n=25A004467
• Coefficient triangle of polynomials (rising powers) related to Fibonacci convolutions. Companion triangle to A057995.at n=12A057280
• Coefficient triangle of polynomials (falling powers) related to Fibonacci convolutions. Companion triangle to A057281.at n=12A057282
• Number of permutations of length n which avoid the patterns 312, 1324, 3421; or avoid the patterns 312, 1324, 2341, etc.at n=29A116722
• The A161671(n)-th partial sum of A161671.at n=41A161778
• Number of zero-sum nX2 -2..2 arrays with every element unequal to at most two horizontal and vertical neighbors.at n=4A201797
• Number of zero-sum nX5 -2..2 arrays with every element unequal to at most two horizontal and vertical neighbors.at n=1A201800
• T(n,k)=Number of zero-sum nXk -2..2 arrays with every element unequal to at most two horizontal and vertical neighbors.at n=16A201803
• T(n,k)=Number of zero-sum nXk -2..2 arrays with every element unequal to at most two horizontal and vertical neighbors.at n=19A201803
• a(n) = n^4 + 64.at n=13A272297
• Number of distinct sums i^3 + j^3 + k^3 + l^3 for 0<=i<=j<=k<=l<=n.at n=30A374711