Number of length 3+4 0..n arrays with every five consecutive terms having four times some element equal to the sum of the remaining four.
A249659
Number of length 3+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) =1408a(5) =3221a(6) =6678a(7) =12377a(8) =20572a(9) =33877a(10) =51568a(11) =74947a(12) =105310a(13) =143727a(14) =195754a(15) =259799a(16) =336688a(17) =428339a(18) =536286a(19) =671719a(20) =828944a(21) =1009781a(22) =1216838a(23) =1452459a(24) =1732578a(25) =2047055a(26) =2399248a(27) =2791887a(28) =3227102a(29) =3727571
External references
- oeis: A249659