Number of length 2+4 0..n arrays with every five consecutive terms having two times the sum of some three elements equal to three times the sum of the remaining two.
A248989
Number of length 2+4 0..n arrays with every five consecutive terms having two times the sum of some three elements equal to three times the sum of the remaining two.
Terms
- a(0) =2a(1) =53a(2) =204a(3) =585a(4) =1654a(5) =4137a(6) =7964a(7) =14661a(8) =23778a(9) =39441a(10) =60264a(11) =90193a(12) =126626a(13) =176141a(14) =239692a(15) =322385a(16) =419046a(17) =539841a(18) =675924a(19) =853485a(20) =1053130a(21) =1293121a(22) =1559752a(23) =1873217a(24) =2232130a(25) =2653637a(26) =3111812a(27) =3639577a(28) =4210230a(29) =4884793
External references
- oeis: A248989