-8495

Appears in sequences

• arctan(sin(x)-tanh(x))=1/3!*x^3-15/5!*x^5+271/7!*x^7-8495/9!*x^9...at n=3A013382
• a(n) = -(n + 1)*(2*n^2 + n - 12)/6.at n=29A058372
• Triangle read by rows: row n gives coefficients of increasing powers of x in characteristic polynomial of the matrix (-1)^n*M_n, where M_n is the tridiagonal matrix defined in the Comments line.at n=46A124037