38258domain: NAppears in sequencesa(n+1) is the least k such that 1/(a(n)+1) + 1/(a(n)+2) + ... + 1/k > 1, with a(1) = 1.at n=10A180224Coefficient of x in the reduction by x^2->x+1 of the polynomial p(n,x) defined at Comments.at n=14A193005