Number of tilings of a 10 X n rectangle using 2n pentominoes of shape P.

A247119

Number of tilings of a 10 X n rectangle using 2n pentominoes of shape P.

Terms

    a(0) =1a(1) =0a(2) =4a(3) =0a(4) =52a(5) =194a(6) =808a(7) =2858a(8) =13998a(9) =66154a(10) =378268a(11) =1550370a(12) =7987672a(13) =37394810a(14) =190191026a(15) =958595712a(16) =4634180280a(17) =23153016922a(18) =114436235324a(19) =570764742248

External references