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A330111
Decimal expansion of the solution of 1/e^x + sech(x) = 1.
3
1, 0, 1, 8, 5, 9, 1, 8, 1, 9, 7, 7, 7, 9, 0, 6, 5, 9, 0, 3, 5, 4, 2, 2, 4, 6, 7, 3, 6, 8, 1, 1, 6, 4, 9, 1, 5, 9, 9, 4, 5, 2, 0, 6, 4, 0, 6, 9, 6, 1, 4, 3, 2, 4, 3, 6, 9, 9, 8, 4, 5, 8, 8, 0, 2, 5, 2, 4, 8, 7, 1, 8, 5, 6, 1, 4, 0, 4, 7, 0, 9, 8, 1, 3, 5, 7
OFFSET
1,4
EXAMPLE
x = 1.01859181977790659035422467368...
MATHEMATICA
r = x /. FindRoot[1/E^x + Sech[x] == 1, {x, 0, 2}, WorkingPrecision -> 200]
RealDigits[r] (* A330111 *)
Plot[1/E^x + Sech[x] - 1, {x, -3, 4}]
CROSSREFS
Sequence in context: A144454 A074071 A100126 * A335822 A233033 A244810
KEYWORD
nonn,cons,easy
AUTHOR
Clark Kimberling, Jan 04 2020
STATUS
approved