A354630 - OEIS

%I #7 Jun 14 2023 07:46:31

%S 1,6,4,8,7,7,0,7,3,4,9,2,1,0,7,7,4,3,8,2,6,1,9,1,2,6,7,2,9,4,4,2,8,7,

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

%U 4,0,4,7,4,3,8,3,2,3,2,3,3,2,3,9,2,7,0,2,3,6,8,8,3

%N Decimal expansion of the negated digamma function at 4/7.

%H <a href="/index/Di#differential_equations">Index entries for sequences related to the digamma function</a>.

%e psi(4/7) = -1.64877073492107...

%t RealDigits[PolyGamma[4/7], 10, 120][[1]] (* _Amiram Eldar_, Jun 14 2023 *)

%o (PARI) -psi(4/7) \\ _Amiram Eldar_, Jun 14 2023

%Y Cf. A354627, A354628, A354629, A354631, A354632.

%K nonn,cons

%O 1,2

%A _R. J. Mathar_, Jun 01 2022