Number of length n+5 0..7 arrays with every six consecutive terms having two times the sum of some two elements equal to the sum of the remaining four.
A249084
Number of length n+5 0..7 arrays with every six consecutive terms having two times the sum of some two elements equal to the sum of the remaining four.
Terms
- a(0) =78448a(1) =202628a(2) =525960a(3) =1365188a(4) =3535850a(5) =9128450a(6) =23480326a(7) =61940694a(8) =162995818a(9) =427723930a(10) =1118943674a(11) =2917379528a(12) =7579080652a(13) =20132662668a(14) =53324358248a(15) =140801592674a(16) =370556680666a(17) =971794433086
External references
- oeis: A249084