75084domain: NAppears in sequencesSite series for second perpendicular moment of Kagome lattice.at n=16A120552Number of binary strings of length n with equal numbers of 00101 and 10100 substrings.at n=17A164248a(n) = 4^n * [x^n] 1/sqrt(1-x) * Product_{k>=1} 1/(1 - x^k).at n=6A325947