Number of length n+4 0..3 arrays with no five consecutive terms having two times the sum of any three elements equal to three times the sum of the remaining two.
A248996
Number of length n+4 0..3 arrays with no five consecutive terms having two times the sum of any three elements equal to three times the sum of the remaining two.
Terms
- a(0) =820a(1) =2668a(2) =8680a(3) =28240a(4) =91888a(5) =299044a(6) =973204a(7) =3167500a(8) =10309372a(9) =33554728a(10) =109215076a(11) =355477276a(12) =1157029012a(13) =3765974644a(14) =12257760052a(15) =39897482020a(16) =129861371368a(17) =422682950584
External references
- oeis: A248996