2768896

Appears in sequences

• a(n) = 2^(n-3)*n^2*(n+3).at n=13A058645
• Records in A114183.at n=25A222193
• The squares related to the strictly increasing subsequence of A053667(n), n >= 1.at n=28A248648
• Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum.at n=3A256766
• Number of (n+2)X(4+2) 0..1 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum.at n=2A256767
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum.at n=17A256771
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum.at n=18A256771
• Number of permutations of n elements divided by the number of ternary heaps on n+1 elements.at n=30A273731
• Sum of the coefficients in the Schur expansion of Product_{1<=i<=j<=n} (1+x_i+x_j), which is the total Chern class for the vector bundle Sym^2(E) where E is a vector bundle over a smooth complex projective variety of rank n with Chern roots x_1,...,x_n.at n=5A306397