|  | 
| Name | bernasconi.55.6 | 
| Classification | nc|bc|d4 | 
| Problem type | autocorrelated_sequences | 
| Description | degree-four model for low autocorrelated binary sequences | 
 |  | 
| Objective sense | min | 
| Variables | 56  (55 binary, 0 general integer, 1 continuous) | 
| Nonlinear variables | 1 | 
| Constraints | 0 | 
| Nonlinear constraints | 1 | 
| Linear nonzeros | 0 | 
| Nonlinear nonzeros | 978 | 
 |  | 
| Download |  bernasconi.55.6.pip.gz bernasconi.55.6.gms.gz  bernasconi.55.6.mod.gz  bernasconi.55.6.zpl.gz  | 
| Best known solution |  | 
| Best known objective | -2400 | 
| Best known bound | -7848 | 
 |  | 
| Originator | Frauke Liers, Enzo Marinari, Ulrike Pagacz, Federico Ricci-Tersenghi, Vera Schmitz | 
| Formulator | Ulrike Pagacz | 
| Donator | Ulrike Pagacz | 
 |  | 
| References | 
 |