'id' : 'ACSPercentageEntrainments:ACSData', 'input' : 'WeatherPod:CityData_Show metric' 'input' : 'WeatherPod:CityData_Show history' 'plaintext' : '55 ☏ | relative humidity: 80% | rain, overcast'

'title' : '55 ☏ | relative humidity: 80% | rain, overcast', 'plaintext' : 'county | Sacramento County state | California country | United States' 'title' : 'county | Sacramento County state | California country | United States', 'src' : 'http://'alt' : 'county | Sacramento County state | California country | United States', 'input' : 'Map:CityData_17000 miles across' 'input' : 'Map:CityData_8600 miles across' 'input' : 'Map:CityData_5100 miles across' 'input' : 'Map:CityData_2600 miles across' 'input' : 'Map:CityData_1300 miles across' 'input' : 'Map:CityData_660 miles across' 'input' : 'Map:CityData_330 miles across' 'input' : 'Map:CityData_160 miles across' 'input' : 'Location:CityData_Show coordinates' 'input' : 'Population:CityData_Show history' 'plaintext' : 'city population | 490712 people (country rank: 34th) (2015 estimate) urban area population | 1.393 million people (Sacramento urban area) (country rank: 28th) (2000 estimate) metro area population | 2.176 million people (Sacramento metro area) (country rank: 25th) (2011 estimate)' 'title' : 'city population | 490712 people (country rank: 34th) (2015 estimate) urban area population | 1.393 million people (Sacramento urban area) (country rank: 28th) (2000 estimate) metro area population | 2.176 million people (Sacramento metro area) (country rank: 25th) (2011 estimate)', 'src' : 'http://'alt' : 'city population | 490712 people (country rank: 34th) (2015 estimate) urban area population | 1.393 million people (Sacramento urban area) (country rank: 28th) (2000 estimate) metro area population | 2.176 million people (Sacramento metro area) (country rank: 25th) (2011 estimate)', 'plaintext' : 'Sacramento, California, United States' 'title' : 'Sacramento, California, United States', 'src' : 'http://'alt' : 'Sacramento, California, United States',

If you're interested about the context, I'm studying the Landau levels of a simple tight-binding Hamiltonian on a square lattice with nearest neighbor interactions, periodic boundary conditions and a constant magnetic field using the Landau Gauge.'datatypes' : 'ACS,Airport,City,Country,Hospital,MetropolitanArea,UrbanArea,USCounty,USState', If there is such a way, maybe I could use it to solve other problems that arise in a similar context. However, this has so much symmetry that it makes me wonder if there's a way. Usually I'd accept that this is as hard a problem as finding the eigenvalues of a tridiagonal matrix with any old $a_n$. I don't even know if these specific matrices have a name. I've done quite a bit of research on the internet about tridiagonal matrices but I cannot find any source of information suitable to my problem. I really want to find the eigenvalues of this matrix:

Wolframalpha matrix solver