Number of -n..n arrays x(0..6) of 7 elements with zero sum and no two neighbors summing to zero.
A199836
Number of -n..n arrays x(0..6) of 7 elements with zero sum and no two neighbors summing to zero.
Terms
- a(0) =22a(1) =1650a(2) =20240a(3) =118280a(4) =462234a(5) =1402934a(6) =3579520a(7) =8046928a(8) =16426926a(9) =31082698a(10) =55316976a(11) =93593720a(12) =151783346a(13) =237431502a(14) =360051392a(15) =531439648a(16) =766015750a(17) =1081184994a(18) =1497725008a(19) =2040195816a(20) =2737373450a(21) =3622707110a(22) =4734799872
External references
- oeis: A199836