Number of 2 X n matrices containing a 1 in the top left entry, all entries are integer values and adjacent entries differ by at most 1.
A138977
Number of 2 X n matrices containing a 1 in the top left entry, all entries are integer values and adjacent entries differ by at most 1.
Terms
- a(0) =3a(1) =19a(2) =121a(3) =771a(4) =4913a(5) =31307a(6) =199497a(7) =1271251a(8) =8100769a(9) =51620379a(10) =328939577a(11) =2096095523a(12) =13356910353a(13) =85113990379a(14) =542370291241
External references
- oeis: A138977