1362597

Appears in sequences

• Number T(n,k) of tilings of a 5 X n rectangle with pentominoes of any shape and exactly k pentominoes of shape W; triangle T(n,k), n>=0, 0<=k<=max(0,floor((n-2)/2)*2) read by rows.at n=20A247710
• Number of tilings of a 5 X n rectangle using n pentominoes of any but the W shape.at n=8A247774