login
A358989
Decimal expansion of 13*sqrt(146)/50.
0
3, 1, 4, 1, 5, 9, 1, 9, 5, 3, 1, 3, 4, 5, 8, 8, 7, 3, 7, 7, 5, 3, 5, 3, 8, 2, 0, 9, 3, 7, 0, 0, 4, 2, 4, 8, 1, 5, 5, 9, 5, 8, 2, 2, 5, 4, 3, 4, 1, 3, 0, 5, 6, 1, 7, 9, 1, 7, 6, 5, 6, 4, 2, 8, 4, 2, 2, 0, 8, 4, 5, 3, 2, 5, 2, 7, 7, 1, 4, 8, 4, 4, 1, 9, 0, 9, 7, 2, 7, 2, 3, 5, 1, 0
OFFSET
1,1
COMMENTS
An approximation for Pi by C. G. Specht and Helen A. Merrill.
REFERENCES
Helen A. Merrill, Mathematical Excursions, Boston, Bruce Humphries, Inc., 1933.
LINKS
Herman C. Schepler, The Chronology of PI, Mathematics Magazine, Vol. 23, No. 5 (May - Jun., 1950), pp. 279-283.
C. G. Specht, Annäherungs-Construction des Kreis-Umfangs und Flächen-Inhalts, Journal für die reine und angewandte Mathematik, Vol. 3 (1828), p. 83.
EXAMPLE
3.1415919531345887377535382093700424815595822543413056179176564284220845325277...
MATHEMATICA
RealDigits[13*Sqrt[146]/50, 10, 120][[1]] (* Amiram Eldar, Dec 09 2022 *)
CROSSREFS
Cf. A000796 (Pi).
Sequence in context: A216543 A152040 A013705 * A216548 A087478 A328927
KEYWORD
nonn,cons
AUTHOR
Jack Zhang, Dec 09 2022
STATUS
approved