1132373domain: NAppears in sequencesNumber of forests of rooted trees where n dollars are spent and an n-node tree costs 2n-1 dollars.at n=31A038000Number of nX6 0..1 arrays with every element equal to 0, 1, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=14A302513