Number of n X 2 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,0) or (-1,-1) and new values introduced in order 0..2.
A275498
Number of n X 2 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,0) or (-1,-1) and new values introduced in order 0..2.
Terms
- a(0) =2a(1) =9a(2) =16a(3) =28a(4) =56a(5) =104a(6) =200a(7) =380a(8) =724a(9) =1380a(10) =2628a(11) =5008a(12) =9540a(13) =18176a(14) =34628a(15) =65972a(16) =125688a(17) =239456a(18) =456204a(19) =869144a(20) =1655864a(21) =3154696a(22) =6010220a(23) =11450468a(24) =21815044a(25) =41561284a(26) =79181152a(27) =150853252a(28) =287400512a(29) =547545732
External references
- oeis: A275498