Number of 4 X n grids of black and white cells, no 3 of same color vertically or horizontally contiguous.
A060522
Number of 4 X n grids of black and white cells, no 3 of same color vertically or horizontally contiguous.
Terms
- a(0) =10a(1) =100a(2) =378a(3) =2030a(4) =9484a(5) =46746a(6) =225654a(7) =1098136a(8) =5327258a(9) =25875154a(10) =125619088a(11) =609970274a(12) =2961628194a(13) =14380186660a(14) =69822244298a(15) =339019686614
External references
- oeis: A060522