Number of ways to 5-color a 3 X n grid ignoring the variations of two colors.

A355883

Number of ways to 5-color a 3 X n grid ignoring the variations of two colors.

Terms

    a(0) =4a(1) =169a(2) =7141a(3) =301741a(4) =12749989a(5) =538747549a(6) =22764640981a(7) =961914128461

External references