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A196147 Bits obtained using Pi and e's digits after the decimal: if, the corresponding digits' parities (cf. even vs. odd) are the same, output is 0; otherwise, output is 1. 1
0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1

LINKS

Table of n, a(n) for n=1..90.

EXAMPLE

For a(1): 1. digit of Pi (after decimal) = 1, 1. digit of e (after decimal) = 7, since parities are the same, a(1) = 0.

For a(2): 2. digit of Pi (after decimal) = 4, 2. digit of e (after decimal) = 1, since parities are not the same, a(2) = 1.

For a(3): 3. digit of Pi (after decimal) = 1, 3. digit of e (after decimal) = 8, since parities are not the same, a(3) = 1.

MAPLE

Digits := 120 ;

A196147 := proc(n)

        ap := floor(10^n*Pi) mod 10 ;

        ep := floor(10^n*exp(1)) mod 10 ;

        if (ap mod 2) = (ep mod 2) then

                0;

        else

                1;

        end if;

end proc: # R. J. Mathar, Sep 28 2011

MATHEMATICA

f[n_]:=Mod[RealDigits[N[n, 200]][[1]], 2]; Abs[f[Pi-3]-f[E-2]] (* Zak Seidov, Sep 29 2011 *)

CROSSREFS

Cf. A030657, A071981, A000796, A001113.

Sequence in context: A257799 A089496 A182067 * A242647 A275606 A211487

Adjacent sequences:  A196144 A196145 A196146 * A196148 A196149 A196150

KEYWORD

nonn,less,base

AUTHOR

Umut Uludag, Sep 28 2011

STATUS

approved

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Last modified October 21 00:56 EDT 2017. Contains 293679 sequences.