35866domain: NAppears in sequencesFrom a nim-like game.at n=38A003412Number of 4-bead necklaces labeled with numbers -n..n allowing reversal, with sum zero with no three beads in a row equal.at n=36A209345Number of n X 4 0..1 arrays with rows and antidiagonals unimodal and columns nondecreasing.at n=16A224142