Number of nondecreasing -4..4 vectors of length n whose dot product with some nonincreasing -4..4 vector equals n.
A226395
Number of nondecreasing -4..4 vectors of length n whose dot product with some nonincreasing -4..4 vector equals n.
Terms
- a(0) =2a(1) =32a(2) =120a(3) =448a(4) =874a(5) =2498a(6) =4280a(7) =10992a(8) =18566a(9) =32056a(10) =52408a(11) =107154a(12) =142740a(13) =232578
External references
- oeis: A226395