Number of zero-sum -5..5 arrays of n elements with first through third differences also in -5..5.
A202508
Number of zero-sum -5..5 arrays of n elements with first through third differences also in -5..5.
Terms
- a(0) =1a(1) =5a(2) =27a(3) =115a(4) =529a(5) =2369a(6) =10799a(7) =50519a(8) =235731a(9) =1110857a(10) =5255015a(11) =24917719a(12) =118624427a(13) =566325889a(14) =2711707427a(15) =13018061199a(16) =62630442305a(17) =301891809587
External references
- oeis: A202508