40474

Appears in sequences

• Central element of a series of 5 successive nonsquarefree numbers.at n=26A188296
• G.f. for Ehrhart quasi-polynomials for hyperplane arrangements of type E_8.at n=58A210632
• Triangle T(n,k) read by rows: the number of traceless symmetric binary n X n matrices with 2k one's and no all-1 2 X 2 submatrix.at n=33A352472