Number of (n+2) X 6 0..3 arrays with every 3 X 3 subblock commuting with each horizontal and vertical neighbor 3 X 3 subblock.

A186876

Number of (n+2) X 6 0..3 arrays with every 3 X 3 subblock commuting with each horizontal and vertical neighbor 3 X 3 subblock.

Terms

    a(0) =46583a(1) =6829a(2) =20152a(3) =79096a(4) =100600a(5) =108640a(6) =121144a(7) =148048a(8) =208576a(9) =364504a(10) =628144a(11) =1130851a(12) =1957270a(13) =3187537a(14) =5316589a(15) =8884561a(16) =14454997a(17) =24229909a(18) =40800838a(19) =67069960a(20) =112339666a(21) =188701339a(22) =310868899a(23) =519362947a(24) =870845683a(25) =1438553446

External references