Number of length 6+2 0..n arrays with no three consecutive terms having the sum of any two elements equal to twice the third.
A248467
Number of length 6+2 0..n arrays with no three consecutive terms having the sum of any two elements equal to twice the third.
Terms
- a(0) =68a(1) =576a(2) =14040a(3) =96736a(4) =520788a(5) =1952254a(6) =6493036a(7) =17917712a(8) =45541888a(9) =102869198a(10) =219106196a(11) =433633802a(12) =820820502a(13) =1471721904a(14) =2552955354a(15) =4256615846a(16) =6910769098a(17) =10880058248a(18) =16766422418a(19) =25217401274a(20) =37267800170a(21) =53987521754
External references
- oeis: A248467