Geodesic
Ramanujan type trigonometric formulas: the general form for the argument $\frac{2\pi}{7}$
Journal of integer sequences, Tome 12 (2009) no. 8.

Voir la notice de l'article provenant de la source Electronic Library of Mathematics

Summary: In this paper, we present many general identities connected with the classical Ramanujan equality. Moreover, we give Binet formulas for an accelerator sequence for Catalan's constant.
Classification : 11B37, 11B83, 11Y55, 33B10
Keywords: Ramanujan equalities, trigonometric recurrences 
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     author = {Witu{\l}a, Roman},
     title = {Ramanujan type trigonometric formulas: the general form for the argument $\frac{2\pi}{7}$},
     journal = {Journal of integer sequences},
     publisher = {mathdoc},
     volume = {12},
     number = {8},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JIS_2009__12_8_a2/}
}
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Wituła, Roman. Ramanujan type trigonometric formulas: the general form for the argument $\frac{2\pi}{7}$. Journal of integer sequences, Tome 12 (2009) no. 8. http://geodesic.mathdoc.fr/item/JIS_2009__12_8_a2/