# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a372837 Showing 1-1 of 1 %I A372837 #5 Jun 12 2024 17:36:27 %S A372837 1,9,3,8,9,9,6,1,0,1,1,1,3,4,1,5,5,5,8,0,0,5,7,0,9,4,8,2,5,4,5,5,5,7, %T A372837 0,3,7,1,0,2,7,1,2,9,1,8,5,4,8,1,8,4,0,7,8,7,9,5,2,5,0,5,3,3,6,8,2,4, %U A372837 4,5,6,4,8,1,6,7,7,1,8,5,7,3,4,8,5,1 %N A372837 Decimal expansion of Sum_{k>=1} sin(Pi/k^2). %e A372837 1.9389961011134155580057094825455570371027129185481840... %t A372837 s = Sum[Sin[Pi/k^2], {k, 1, Infinity}] %t A372837 d = N[s, 100] %t A372837 First[RealDigits[d]] %Y A372837 Cf. A372838. %K A372837 nonn,cons %O A372837 1,2 %A A372837 _Clark Kimberling_, Jun 07 2024 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE