124782

Appears in sequences

• Self-convolution of A092684.at n=16A100938
• Number of signed permutations of length n avoiding (-2, 1) and (2, -1).at n=8A193763
• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of the symmetric matrix A202670 based on A000290 (the squares); by antidiagonals.at n=24A202671