login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A354619
Decimal expansion of Pi + e + gamma, where gamma is Euler's constant (or the Euler-Mascheroni constant).
0
6, 4, 3, 7, 0, 9, 0, 1, 4, 6, 9, 5, 0, 3, 7, 1, 3, 3, 4, 4, 2, 9, 4, 4, 2, 9, 4, 4, 7, 1, 4, 5, 6, 7, 8, 1, 2, 9, 9, 6, 5, 7, 5, 8, 2, 9, 0, 1, 4, 9, 8, 8, 9, 9, 4, 7, 4, 7, 6, 7, 9, 4, 5, 4, 9, 1, 6, 7, 6, 0, 7, 6, 3, 4, 1, 7, 4, 2, 1, 2, 6, 4, 1, 3, 6, 3, 6
OFFSET
1,1
COMMENTS
Although in 1737 Euler proved that e is irrational and in 1761 Lambert proved the same for Pi, it is not presently known whether Pi + e + gamma is rational or irrational.
FORMULA
Equals A000796 + A001113 + A001620 = 2*e + A211015.
EXAMPLE
6.43709014695037133442944294471...
MATHEMATICA
RealDigits[Pi+E+EulerGamma, 10, 100][[1]]
PROG
(Magma) SetDefaultRealField(RealField(100)); R:= RealField(); Pi(R) + Exp(1) + EulerGamma(R);
(PARI) default(realprecision, 100); Pi + exp(1) + Euler
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Marco Ripà, Jul 08 2022
STATUS
approved