# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a345929 Showing 1-1 of 1 %I A345929 #5 Jun 30 2021 02:40:20 %S A345929 1,8,4,8,9,3,6,1,8,2,8,5,8,2,4,4,4,8,5,2,2,4,9,2,6,8,5,5,5,2,0,8,3,9, %T A345929 0,5,9,0,9,2,5,9,2,5,3,1,8,9,6,3,9,7,1,9,1,8,2,8,1,4,0,1,7,3,7,5,0,2, %U A345929 6,6,5,6,8,0,7,9,0,6,7,7,9,4,4,6,9,7,8 %N A345929 Decimal expansion of Product_{k>=1} (1 + 1/k + 1/k^2)^2/(1 + 2/k + 3/k^2). %H A345929 Jonathan M. Borwein and Robert M. Corless, Emerging Tools for Experimental Mathematics, The American Mathematical Monthly, Vol. 106, No. 10 (1999), pp. 889-909. %F A345929 Equals 3*sqrt(2)*cosh(Pi*sqrt(3)/2)^2/(Pi*sinh(Pi*sqrt(2))). %e A345929 1.84893618285824448522492685552083905909259253189639... %t A345929 RealDigits[3*Sqrt[2]*Cosh[Pi*Sqrt[3]/2]^2/(Pi*Sinh[Pi*Sqrt[2]]), 10, 100][[1]] %Y A345929 Cf. A090986. %K A345929 nonn,cons %O A345929 1,2 %A A345929 _Amiram Eldar_, Jun 29 2021 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE