Number of length n+3 0..4 arrays with no four consecutive terms having the maximum of any two terms equal to the minimum of the remaining two terms.
A250383
Number of length n+3 0..4 arrays with no four consecutive terms having the maximum of any two terms equal to the minimum of the remaining two terms.
Terms
- a(0) =420a(1) =1560a(2) =5848a(3) =21950a(4) =82398a(5) =309452a(6) =1162292a(7) =4365720a(8) =16398414a(9) =61595866a(10) =231368150a(11) =869073568a(12) =3264448894a(13) =12262057782a(14) =46059259710a(15) =173009763590a(16) =649866719912
External references
- oeis: A250383