Number of length n+4 0..3 arrays with no five consecutive elements with pattern ababa or abbba (with a!=b) and new values 0..3 introduced in 0..3 order.
A244695
Number of length n+4 0..3 arrays with no five consecutive elements with pattern ababa or abbba (with a!=b) and new values 0..3 introduced in 0..3 order.
Terms
- a(0) =49a(1) =176a(2) =661a(3) =2540a(4) =9858a(5) =38440a(6) =150208a(7) =587527a(8) =2299087a(9) =8998528a(10) =35223120a(11) =137880423a(12) =539741489a(13) =2112870328a(14) =8271068957a(15) =32378091171a(16) =126748027162a(17) =496170960208
External references
- oeis: A244695