-245952

Appears in sequences

• E.g.f.: sec(tanh(x)*log(x+1))=1+12/4!*x^4-60/5!*x^5+90/6!*x^6-420/7!*x^7...at n=9A012657
• Table, read by rows, of coefficients of characteristic polynomials of almost prime matrices.at n=46A131175