Number of length 4+4 0..n 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.

A249005

Number of length 4+4 0..n 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) =216a(1) =2802a(2) =28240a(3) =172888a(4) =822348a(5) =2865126a(6) =8902860a(7) =23177368a(8) =55906496a(9) =122921570a(10) =254998668a(11) =492803174a(12) =916912140a(13) =1618570176a(14) =2775224082a(15) =4580364152a(16) =7372967710a(17) =11513855042a(18) =17636594106a(19) =26371506592a(20) =38792087628

External references