Number of length 4+4 0..n arrays with every five consecutive terms having four times some element equal to the sum of the remaining four.

A249660

Number of length 4+4 0..n arrays with every five consecutive terms having four times some element equal to the sum of the remaining four.

Terms

    a(0) =2a(1) =53a(2) =164a(3) =485a(4) =1620a(5) =3981a(6) =9026a(7) =18009a(8) =31276a(9) =53643a(10) =83648a(11) =124019a(12) =177426a(13) =246495a(14) =341802a(15) =460879a(16) =604888a(17) =778121a(18) =983998a(19) =1248361a(20) =1556940a(21) =1913895a(22) =2325318a(23) =2796619a(24) =3361158a(25) =3997715a(26) =4713400a(27) =5516083a(28) =6407962a(29) =7439621

External references