Number of length 3+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.
A248990
Number of length 3+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) =2042a(5) =6065a(6) =12644a(7) =24583a(8) =40878a(9) =72399a(10) =115668a(11) =180421a(12) =260514a(13) =371185a(14) =521910a(15) =723925a(16) =962888a(17) =1263913a(18) =1604166a(19) =2067027a(20) =2592298a(21) =3230455a(22) =3942088a(23) =4781303a(24) =5766434a(25) =6934955a(26) =8208132a(27) =9682923a(28) =11277354a(29) =13209205
External references
- oeis: A248990