Number of zero-sum -7..7 arrays of n elements with adjacent element differences also in -7..7.
A202251
Number of zero-sum -7..7 arrays of n elements with adjacent element differences also in -7..7.
Terms
- a(0) =1a(1) =7a(2) =75a(3) =779a(4) =8211a(5) =88301a(6) =960501a(7) =10536609a(8) =116366779a(9) =1292162535a(10) =14412747241a(11) =161362353297
External references
- oeis: A202251