Number of nX5 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 0 and 1 1 1 vertically.
A207876
Number of nX5 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 0 and 1 1 1 vertically.
Terms
- a(0) =13a(1) =169a(2) =336a(3) =824a(4) =1648a(5) =4160a(6) =8892a(7) =19710a(8) =44868a(9) =100056a(10) =224792a(11) =497348a(12) =1123364a(13) =2520128a(14) =5603808a(15) =12569064a(16) =28201200a(17) =63082040a(18) =140941364a(19) =315874560a(20) =707891088a(21) =1582568420a(22) =3541951148a(23) =7935579276a(24) =17763012916a(25) =39742042856
External references
- oeis: A207876