Number of nondecreasing -n..n vectors of length 7 whose dot product with some other -n..n vector equals 7.
A226346
Number of nondecreasing -n..n vectors of length 7 whose dot product with some other -n..n vector equals 7.
Terms
- a(0) =8a(1) =281a(2) =1640a(3) =6068a(4) =19046a(5) =48341a(6) =114235a(7) =238393a(8) =472550a(9) =866608a(10) =1539323
External references
- oeis: A226346