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A330479
Decimal expansion of 2*e^2-2 (or 2*(e^2-1)).
0
1, 2, 7, 7, 8, 1, 1, 2, 1, 9, 7, 8, 6, 1, 3, 0, 0, 4, 5, 4, 4, 6, 0, 8, 5, 4, 9, 2, 1, 1, 5, 0, 0, 1, 5, 6, 2, 6, 3, 6, 0, 6, 3, 1, 1, 4, 1, 1, 0, 3, 6, 9, 4, 6, 4, 8, 1, 7, 4, 2, 5, 5, 6, 4, 5, 0, 4, 5, 1, 4, 7, 5, 9, 2, 1, 5, 8, 1, 1, 5, 5, 2, 6, 7, 6, 8, 6, 2, 4, 9, 7, 0, 1, 5, 8, 2, 4, 3, 5, 8, 9, 5, 4, 7, 5
OFFSET
2,2
COMMENTS
Solution of the equation W(x+W(x+W(...))) = 2, where W(x) is the Lambert W function.
2*e^2-2 is a transcendental number.
FORMULA
Equals 2*(A072334 - 1).
EXAMPLE
12.7781121978613004544608549211500156263606311411036946481742556450...
MATHEMATICA
RealDigits[2*(E^2-1), 10, 105][[1]] (* Amiram Eldar, Dec 19 2019 *)
CROSSREFS
Sequence in context: A068386 A021040 A246553 * A349804 A355500 A257960
KEYWORD
easy,cons,nonn
AUTHOR
Eder Vanzei, Dec 15 2019
STATUS
approved