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Search: id:A069984
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| 1123, 22583, 44043, 65503, 86963, 108423, 129883, 151343, 172803, 194263, 215723, 237183, 258643, 280103, 301563, 323023, 344483, 365943, 387403, 408863, 430323, 451783, 473243, 494703, 516163, 537623, 559083, 580543, 602003, 623463
(list; graph; listen)
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OFFSET
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0,1
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COMMENT
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Arises in an important Ramanujan formula for Pi: 4/Pi=1123/882-22583/882^3*(1/2*(1*3)/4^2)+...
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REFERENCES
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L. Berggren, J. Borwein and P. Borwein, "Pi: A source book", Springer, second edition, p. 328.
S. Ramanujan, "Modular equations and approximations to Pi", Quart. J. Pure Appl. Math., v. 45, 1914, p. 350-372.
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LINKS
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Tanya Khovanova, Recursive Sequences
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CROSSREFS
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Sequence in context: A035859 A105310 A125840 this_sequence A104285 A082888 A122384
Adjacent sequences: A069981 A069982 A069983 this_sequence A069985 A069986 A069987
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KEYWORD
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easy,nonn
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AUTHOR
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Benoit Cloitre (benoit7848c(AT)orange.fr), May 01 2002
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