Number of n X 4 0..2 arrays with no element equal to any value at offset (-1,-2) (-2,-1) (0,-1) or (-1,0) and new values introduced in order 0..2.
A274799
Number of n X 4 0..2 arrays with no element equal to any value at offset (-1,-2) (-2,-1) (0,-1) or (-1,0) and new values introduced in order 0..2.
Terms
- a(0) =4a(1) =22a(2) =112a(3) =596a(4) =3104a(5) =16328a(6) =85504a(7) =448656a(8) =2352080a(9) =12335680a(10) =64684112a(11) =339207984a(12) =1778768656a(13) =9327806784a(14) =48914391648a(15) =256504556080
External references
- oeis: A274799