OFFSET
1,2
COMMENTS
This sequence is a permutation of the positive integers.
LINKS
EXAMPLE
The first terms, alongside the corresponding sums, are:
n a(2*n-1) a(2*n) Sum_{k=1..n} a(2*k-1)/a(2*k)
- -------- -------- -----------------------------
1 1 2 1/2
2 3 7 13/14
3 4 57 797/798
4 5 3991 3184817/3184818
5 6 19108909 60858397343561/60858397343562
PROG
(PARI) \\ See Links section.
CROSSREFS
KEYWORD
nonn
AUTHOR
Rémy Sigrist, Sep 08 2024
STATUS
approved