20387domain: NAppears in sequencesa(n) = Sum_{m=1..n} T(m,n+1-m), array T as in A048887.at n=17A048888Number of benzenoids with 22 hexagons, C_(2v) symmetry and containing n carbon atoms.at n=25A123106Number of Ramanujan primes <= 2^n.at n=19A190502