ディリクレベータ関数
91596 55941 77219 ... {\displaystyle \beta (2)=G=0.91596\,55941\,77219\ldots }
β ( 3 ) = π 3 32 = 0.96894 61462 59369 ... {\displaystyle \beta (3)={\frac {\pi ^{3}}{32}}=0.96894\,61462\,59369\ldots }
β ( 4 ) = 1 768 [ ψ ( 3 ) ( 1 4 ) − 8 π 4 ] = 0.98894 45517 41105 ... {\displaystyle \beta (4)={\frac {1}{768}}{\biggl [}\psi ^{(3)}\!{\biggl (}{\frac {1}{4}}{\biggr )}-8\pi ^{4}{\biggr ]}=0.98894\,45517\,41105\ldots }
β ( 5 ) = 5 π 5 1536 = 0.99615 78280 77088 ... {\displaystyle \beta (5)={\frac {5\pi ^{5}}{1536}}=0.