Number of -n..n arrays of length 7 with the sum ahead of each element differing from the sum following that element by n or less.
A221970
Number of -n..n arrays of length 7 with the sum ahead of each element differing from the sum following that element by n or less.
Terms
- a(0) =255a(1) =7425a(2) =73983a(3) =419841a(4) =1690623a(5) =5407233a(6) =14661375a(7) =35111681a(8) =76335103a(9) =153588225a(10) =290033151a(11) =519482625a(12) =889719039a(13) =1466441985a(14) =2337899007a(15) =3620254209a(16) =5463749375a(17) =8059712257a(18) =11648466687a(19) =16528199169a(20) =23064836607
External references
- oeis: A221970