901647domain: NAppears in sequencesNumber T(n,k) of tilings of a 5 X n rectangle with pentominoes of any shape and exactly k pentominoes of shape V; triangle T(n,k), n>=0, 0<=k<=max(0,n-2+delta_{n,3}), read by rows.at n=24A247709Number of tilings of a 5 X n rectangle using n pentominoes of any but the V shape.at n=8A247773