Number of ways to partition an n X 4 grid into 4 connected equal-area regions.

A167248

Number of ways to partition an n X 4 grid into 4 connected equal-area regions.

Terms

    a(0) =1a(1) =5a(2) =23a(3) =117a(4) =501a(5) =2369a(6) =9525a(7) =39731a(8) =145415a(9) =554487a(10) =1975561a(11) =7301317a(12) =25334269

External references