349180domain: NAppears in sequencesNumber of Barlow packings with group R3(bar)m(O) that repeat after 6n layers.at n=18A011955Number of monic irreducible polynomials over GF(4) with zero trace.at n=11A054661Duplicate of A054661.at n=11A074024Moebius transform of Jacobsthal numbers.at n=20A104723