45837domain: NAppears in sequencesNumber of Twopins positions.at n=54A005686Antidiagonal sums of the triangle A099557.at n=26A099558Number of 7 X n 0..1 arrays with antidiagonals unimodal and rows and diagonals nondecreasing.at n=10A224043Numbers k such that there are precisely 8 groups of orders k and k + 1.at n=2A295993