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A120340
Sequence of pairs numerator(s(n)), denominator(s(n)) where s(n) is the n-th partial sum of 1/A119751(n).
0
1, 1, 4, 3, 13, 9, 302, 207, 43255, 29601, 58966432, 40346163, 1700782246897, 1163704379409, 687683872186748, 470524470741039, 209415712651415308217, 143285523403473419397, 552462361711804327497414320
OFFSET
1,3
COMMENTS
There are only 11 terms of A119751 known and s(11) is 1.4615274858438132136894180577690622581842692760227 to 50 decimal places. What is sum(1/A119751(k),k=1..infinity)?
FORMULA
a(2n-1) = numerator(s(n)), a(2n)=denominator(s(n)), where s(n)=sum(1/A119751(k),k=1..n).
EXAMPLE
a(5)=13, a(6)=9 since s(3)=1+1/3+1/9=13/9.
CROSSREFS
Sequence in context: A169706 A355933 A370924 * A082018 A056477 A376993
KEYWORD
nonn
AUTHOR
Walter Kehowski, Jun 23 2006
EXTENSIONS
This is not really a sequence. The standard OEIS convention would be to split this into two cross-referenced sequences with keyword "frac". - N. J. A. Sloane, Jul 22 2006
STATUS
approved