A019676 Decimal expansion of Pi/9.

3, 4, 9, 0, 6, 5, 8, 5, 0, 3, 9, 8, 8, 6, 5, 9, 1, 5, 3, 8, 4, 7, 3, 8, 1, 5, 3, 6, 9, 7, 7, 2, 2, 5, 4, 2, 6, 8, 8, 5, 7, 4, 3, 7, 7, 7, 0, 8, 3, 4, 5, 0, 9, 1, 2, 1, 9, 4, 3, 8, 2, 8, 8, 0, 3, 4, 2, 0, 1, 8, 2, 2, 9, 2, 0, 6, 8, 9, 8, 8, 8, 7, 3, 6, 4, 4, 8, 3, 1, 3, 9, 2, 6, 9, 0, 1, 8, 9, 6

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• cons

Comments

Overlapping interpretation of A046974, as in where numbers are put in a decimal digit place and overlapping digits are added. - Eliora Ben-Gurion, Dec 22 2019

Examples

			0.349065850398865915384738153697722542688574377708345091219438288034201... - _Vladimir Joseph Stephan Orlovsky_, Dec 02 2009
		

Links

• Ivan Panchenko, Table of n, a(n) for n = 0..1000
• Index entries for transcendental numbers

Crossrefs

Cf. A000796 (Pi).

Programs

Magma

Pi(RealField(120))/9; // G. C. Greubel, Jan 01 2020

Maple

evalf(Pi/9, 120); # G. C. Greubel, Jan 01 2020

Mathematica

RealDigits[N[Pi/9, 120]]//First (* Vladimir Joseph Stephan Orlovsky, Dec 02 2009 *)

PARI

default(realprecision, 120); Pi/9 \\ G. C. Greubel, Jan 01 2020

Sage

numerical_approx(pi/9, digits=120) # G. C. Greubel, Jan 01 2020

Formula

Equals Sum_{k>=0} A046974(k)/10^(k+1) = 3/10 + 4/100 + 8/10^3 + 9/10^4 + 14/10^5 + 23/10^6 + ... - Eliora Ben-Gurion, Dec 22 2019

Equals Integral_{x=0..oo} x^(7/2)/(1 + x^9) dx. - Amiram Eldar, Aug 12 2020