-1622domain: ZAppears in sequencesSequence defined by the recurrence formula a(n+1)=sum(a(p)*a(n-p)+k,p=0..n)+l for n>=1, with here a(0)=1, a(1)=1, k=0 and l=-2.at n=10A176753T(n, m), numerators of coefficients in a power/Fourier series expansion of the plane pendulum's exact differential time dependence.at n=29A274076