Number of n X n 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 1 0 1 vertically.
A208374
Number of n X n 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 1 0 1 vertically.
Terms
- a(0) =2a(1) =16a(2) =72a(3) =420a(4) =2176a(5) =10660a(6) =60984a(7) =340816a(8) =1846240a(9) =11076228a(10) =66303360a(11) =390426916a(12) =2456007216a(13) =15586002640a(14) =98058552648a(15) =645057461220
External references
- oeis: A208374