Number of length n+1 nonnegative integer arrays starting and ending with 0 with adjacent elements differing by no more than 4.
A204209
Number of length n+1 nonnegative integer arrays starting and ending with 0 with adjacent elements differing by no more than 4.
Terms
- a(0) =1a(1) =5a(2) =25a(3) =155a(4) =1025a(5) =7167a(6) =51945a(7) =387000a(8) =2944860a(9) =22791189a(10) =178840639a(11) =1419569398a(12) =11377983292a(13) =91957314063a(14) =748575327757
External references
- oeis: A204209