Number of nX3 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 1 1 vertically.

A207341

Number of nX3 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 1 1 vertically.

Terms

    a(0) =6a(1) =36a(2) =84a(3) =292a(4) =912a(5) =2812a(6) =8928a(7) =28152a(8) =87972a(9) =277292a(10) =872524a(11) =2738692a(12) =8615772a(13) =27093728a(14) =85142632a(15) =267722916a(16) =841747760a(17) =2646047052a(18) =8319199464a(19) =26155059448a(20) =82225749476a(21) =258510349884a(22) =812729058372

External references