Number of length 3+2 0..n arrays with no three consecutive terms having the sum of any two elements equal to twice the third.
A248464
Number of length 3+2 0..n arrays with no three consecutive terms having the sum of any two elements equal to twice the third.
Terms
- a(0) =16a(1) =72a(2) =460a(3) =1512a(4) =4272a(5) =9684a(6) =20236a(7) =37868a(8) =67140a(9) =111104a(10) =177024a(11) =269892a(12) =400040a(13) =574140a(14) =806808a(15) =1107132a(16) =1493952a(17) =1978984a(18) =2586340a(19) =3330852a(20) =4242444a(21) =5338788a(22) =6656352a(23) =8217136a(24) =10064140a(25) =12222784a(26) =14744480a(27) =17659176a(28) =21025952a(29) =24879392
External references
- oeis: A248464