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A091473
Integral_{x>=0} (cos(2x) * Product_{n>=1} cos(x/n)) dx.
2
3, 9, 2, 6, 9, 9, 0, 8, 1, 6, 9, 8, 7, 2, 4, 1, 5, 4, 8, 0, 7, 8, 3, 0, 4, 2, 2, 9, 0, 9, 9, 3, 7, 8, 6, 0, 5, 2, 4, 6, 4, 5, 4, 3, 4, 1, 8, 7, 2, 3, 1, 5, 9, 5, 9, 2, 6, 8, 1, 2, 2, 8, 5, 1, 6, 2, 0, 9, 3, 2, 4, 7, 1, 3, 9, 9, 3, 8, 5, 4, 6, 1, 7, 9, 0, 1, 6, 5, 1, 2, 7, 4, 7, 4, 5, 5, 3, 6, 6, 7, 8
OFFSET
0,1
COMMENTS
First differs from Pi/8 (A019675) in the 42nd place.
LINKS
D. H. Bailey, J. M. Borwein, V. Kapoor and E. Weisstein, Ten Problems in Experimental Mathematics
Eric Weisstein's World of Mathematics, Definite Integral
Eric Weisstein's World of Mathematics, Infinite Cosine Product Integral
EXAMPLE
0.3926990816987...
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Eric W. Weisstein, Jan 13 2004
STATUS
approved