Number of Hamiltonian paths in a 5 X n grid starting in the lower left corner and ending in the lower right.

A014585

Number of Hamiltonian paths in a 5 X n grid starting in the lower left corner and ending in the lower right.

Terms

    a(0) =0a(1) =0a(2) =1a(3) =4a(4) =23a(5) =86a(6) =397a(7) =1584a(8) =6820a(9) =28002a(10) =117852a(11) =488824a(12) =2043133a(13) =8502298a(14) =35463855a(15) =147729456a(16) =615817511a(17) =2566065066a(18) =10694840588a(19) =44568760860a(20) =185743671308a(21) =774073998864

External references