28685316domain: NAppears in sequencesColumn 2 of triangle A118032, where column 2 of the matrix square of A118032 forms a bisection of this sequence.at n=34A118035Column 2 of triangle A118040, which is the matrix square of triangle A118032; also equals a bisection of A118035, which is column 2 of A118032.at n=17A118043