Number of length n+3 0..2 arrays with every four consecutive terms having the maximum of some two terms equal to the minimum of the remaining two terms.
A249701
Number of length n+3 0..2 arrays with every four consecutive terms having the maximum of some two terms equal to the minimum of the remaining two terms.
Terms
- a(0) =39a(1) =69a(2) =125a(3) =221a(4) =377a(5) =659a(6) =1177a(7) =2119a(8) =3805a(9) =6857a(10) =12437a(11) =22681a(12) =41475a(13) =76011a(14) =139645a(15) =257161a(16) =474439a(17) =876539a(18) =1621387a(19) =3002407a(20) =5564769a(21) =10321599a(22) =19156321a(23) =35571383a(24) =66081147a(25) =122803551a(26) =228283091a(27) =424467169a(28) =789412673a(29) =1468380739
External references
- oeis: A249701