Number of length 5+4 0..n arrays with no five consecutive terms having four times any element equal to the sum of the remaining four.
A249471
Number of length 5+4 0..n arrays with no five consecutive terms having four times any element equal to the sum of the remaining four.
Terms
- a(0) =416a(1) =6872a(2) =119932a(3) =884728a(4) =5174842a(5) =21824440a(6) =76550058a(7) =231236220a(8) =620927172a(9) =1512868480a(10) =3409871172a(11) =7187658694a(12) =14321688284a(13) =27179247012a(14) =49484565130a(15) =86796151488a(16) =147351090962a(17) =242923972126a(18) =390163791394a(19) =612170875944
External references
- oeis: A249471