The table of values (for points up to distance 10) is [[0, 1/4, -9, 577/4, -1360, 33601/4, -35861, 435681/4, -239096, 1529441/4, -447001, 1529441/4, -239096, 435681/4, -35861, 33601/4, -1360, 577/4, -9, 1/4, 0], [1/4, 0, -1/4, 8, -449/4, 910, -18929/4, 16594, -160929/4, 68244, -325441/4, 68244, -160929/4, 16594, -18929/4, 910, -449/4, 8, -1/4, 0, 1/4] , [-9, -1/4, 0, 1/4, -7, 337/4, -572, 9681/4, -6671, 48833/4, -14928, 48833/4, -6671, 9681/4, -572, 337/4, -7, 1/4, 0, -1/4, -9], [577/4, 8, 1/4, 0, -1/4, 6, -241/4, 330, -4321/4, 2188, -11073/4, 2188, -4321/4, 330, -241/4, 6, -1/4, 0, 1/4, 8, 577/4], [-1360, -449/4, -7, -1/4, 0, 1/4, -5, 161/4, -168, 1569/4, -521, 1569/4, -168, 161/4, -5, 1/4, 0, -1/4, -7, -449/4, -1360], [33601/4, 910, 337/4, 6, 1/4, 0, -1/4, 4, -97/4, 70, -401/4, 70, -97/4, 4, -1/4, 0, 1/4, 6, 337/4, 910, 33601/4], [-35861, -18929/4, -572, -241/4, -5, -1/4, 0, 1/4, -3, 49/4, -20, 49/4, -3, 1/4, 0, -1/4, -5, -241/4, -572, -18929/4, -35861], [435681/4, 16594, 9681/4, 330, 161/4, 4, 1/4, 0, -1/4, 2, -17/4, 2, -1/4, 0, 1/4, 4, 161/4, 330, 9681/4, 16594, 435681/4], [-239096, -160929/4, -6671, -4321/4, -168, -97/4, -3, -1/4, 0, 1/4, -1, 1/4, 0, -1/4, -3, -97/4, -168, -4321/4, -6671, -160929/4, -239096] , [1529441/4, 68244, 48833/4, 2188, 1569/4, 70, 49/4, 2, 1/4, 0, -1/4, 0, 1/4, 2, 49/4, 70, 1569/4, 2188, 48833/4, 68244, 1529441/4], [-447001, -325441/4, -14928, -11073/4, -521, -401/4, -20, -17/4, -1, -1/4, 0, -1/4, -1, -17/4, -20, -401/4, -521, -11073/4, -14928, -325441/4, -447001], [ 1529441/4, 68244, 48833/4, 2188, 1569/4, 70, 49/4, 2, 1/4, 0, -1/4, 0, 1/4, 2, 49/4, 70, 1569/4, 2188, 48833/4, 68244, 1529441/4], [-239096, -160929/4, -6671, -4321/4, -168, -97/4, -3, -1/4, 0, 1/4, -1, 1/4, 0, -1/4, -3, -97/4, -168, -4321/4, -6671, -160929/4, -239096], [435681/4, 16594, 9681/4, 330, 161/4, 4, 1/4, 0, -1/4, 2, -17/4, 2, -1/4, 0, 1/4, 4, 161/4, 330, 9681/4, 16594, 435681/4], [-35861, -18929/4, -572, -241/4, -5, -1/4, 0, 1/4, -3, 49/4, -20, 49/4, -3, 1/4, 0, -1/4, -5, -241/4, -572, -18929/4, -35861], [ 33601/4, 910, 337/4, 6, 1/4, 0, -1/4, 4, -97/4, 70, -401/4, 70, -97/4, 4, -1/4, 0, 1/4, 6, 337/4, 910, 33601/4], [-1360, -449/4, -7, -1/4, 0, 1/4, -5, 161/4, -168, 1569/4, -521, 1569/4, -168, 161/4, -5, 1/4, 0, -1/4, -7, -449/4, -1360], [577/4, 8, 1/4, 0, -1/4, 6, -241/4, 330, -4321/4, 2188, -11073/4, 2188, -4321/4, 330, -241/4, 6, -1/4, 0, 1/4, 8, 577/4], [-9, -1/4, 0, 1/4, -7, 337/4, -572, 9681/4, -6671, 48833/4, -14928, 48833/4, -6671, 9681/4, -572, 337/4, -7, 1/4, 0, -1/4, -9], [1/4, 0, -1/4, 8, -449/4, 910, -18929/4, 16594, -160929/4, 68244, -325441/4, 68244, -160929/4, 16594, -18929/4, 910, -449/4, 8, -1/4, 0, 1/4], [0, 1/4, -9, 577/4, -1360, 33601/4, -35861, 435681/4, -239096, 1529441/4, -447001, 1529441/4, -239096, 435681/4, -35861, 33601/4, -1360, 577/4, -9, 1/4, 0]] This took , 0.249, seconds