2375680domain: NAppears in sequences(1,1) entry of powers of the orthogonal design shown below.at n=14A087621Numerators of reduced forms of fractions obtained by performing the first n divisions shown below.at n=17A120031a(n) is the denominator of Product_{i=0..n-1} (n-i)^((-1)^ceiling(i/2)).at n=33A337355