Number of length n+2 0..3 arrays with every three consecutive terms having the sum of some two elements equal to twice the third.
A248428
Number of length n+2 0..3 arrays with every three consecutive terms having the sum of some two elements equal to twice the third.
Terms
- a(0) =16a(1) =20a(2) =24a(3) =28a(4) =36a(5) =44a(6) =52a(7) =68a(8) =84a(9) =100a(10) =132a(11) =164a(12) =196a(13) =260a(14) =324a(15) =388a(16) =516a(17) =644a(18) =772a(19) =1028a(20) =1284a(21) =1540a(22) =2052a(23) =2564a(24) =3076a(25) =4100a(26) =5124a(27) =6148a(28) =8196a(29) =10244
External references
- oeis: A248428