Number T(n,k) of tilings of a 5 X n rectangle with pentominoes of any shape and exactly k pentominoes of shape F; triangle T(n,k), n>=0, 0<=k<=max(delta_{3,n},floor((n-2)/2)*2), read by rows.
A247702
Number T(n,k) of tilings of a 5 X n rectangle with pentominoes of any shape and exactly k pentominoes of shape F; triangle T(n,k), n>=0, 0<=k<=max(delta_{3,n},floor((n-2)/2)*2), read by rows.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =52a(4) =4a(5) =437a(6) =60a(7) =4a(8) =3342a(9) =584a(10) =80a(11) =21734a(12) =5372a(13) =818a(14) =24a(15) =2a(16) =155685a(17) =49540a(18) =8800a(19) =620a(20) =44a(21) =1153475a(22) =439780a(23) =92500a(24) =10140a(25) =856a(26) =28a(27) =2a(28) =8422634a(29) =3726836
External references
- oeis: A247702