OFFSET
1,2
COMMENTS
EXAMPLE
a(2) = 106 since A002485(4)/A002486(4) = 333/106, A002485(2)/A002486(2) = 3/1, and 333/106 - 3/1 = 15/106 (see table below).
Pi = 3/1 + 15/106 + 73/877203 + 1/2195225334 + 2/17599271777 + 3/360950005720 + 7/17348726394920 + ....
.
- ------------------------------ ------------- ------
0 0/1 = 0 - -
1 3/1 = 3 3/1 1
2 333/106 = 3.1415094339... 15/106 106
3 103993/33102 = 3.1415926530... 73/877203 877203
PROG
CROSSREFS
KEYWORD
nonn,frac
AUTHOR
Gary W. Adamson and Alexander R. Povolotsky, Feb 01 2009
EXTENSIONS
More terms from Alexander R. Povolotsky, Sep 01 2009
More terms from Michel Marcus, Jan 05 2022
STATUS
approved