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A212878 Decimal expansion of the negated imaginary part of i!. 3
1, 5, 4, 9, 4, 9, 8, 2, 8, 3, 0, 1, 8, 1, 0, 6, 8, 5, 1, 2, 4, 9, 5, 5, 1, 3, 0, 4, 8, 3, 8, 8, 6, 6, 0, 5, 1, 9, 5, 8, 7, 9, 6, 5, 2, 0, 7, 9, 3, 2, 4, 9, 3, 0, 2, 6, 5, 8, 8, 0, 2, 7, 6, 7, 9, 8, 8, 6, 0, 8, 0, 1, 4, 9, 1, 1, 3, 8, 5, 3, 9, 0, 1, 2, 9, 5, 1, 3, 6, 6, 4, 7, 9, 4, 6, 3, 0, 7, 0, 7, 4, 9, 5, 9, 2 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Also the negated real part of Gamma(i).

LINKS

Table of n, a(n) for n=0..104.

FORMULA

i! = gamma(1+i) = i*gamma(i).

EXAMPLE

0.15494982830181068512495513048...

MATHEMATICA

-Gamma[I] // Re // RealDigits[#, 10, 105]& // First (* Jean-Fran├žois Alcover, May 13 2013 *)

PROG

(PARI) -imag(I*gamma(I))

CROSSREFS

A212877 (real(i!)), A212879 (abs(i!)), A212880 (-arg(i!)).

Sequence in context: A125057 A021186 A195705 * A092302 A002389 A196758

Adjacent sequences:  A212875 A212876 A212877 * A212879 A212880 A212881

KEYWORD

nonn,cons,easy

AUTHOR

Stanislav Sykora, May 29 2012

STATUS

approved

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Last modified December 9 10:15 EST 2016. Contains 278971 sequences.