Number of nondecreasing -6..6 vectors of length n whose dot product with some nonincreasing -6..6 vector equals n.
A226397
Number of nondecreasing -6..6 vectors of length n whose dot product with some nonincreasing -6..6 vector equals n.
Terms
- a(0) =2a(1) =64a(2) =344a(3) =1646a(4) =5272a(5) =17812a(6) =41428a(7) =112060a(8) =247684a(9) =582700a(10) =1099228a(11) =2515470a(12) =4309522a(13) =8283534a(14) =15224294a(15) =25736894
External references
- oeis: A226397