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A356075
a(n) = floor(m), where li(m) = n and li is the logarithmic integral. We consider only real and positive m.
0
1, 2, 4, 5, 7, 9, 11, 14, 17, 20, 23, 26, 29, 33, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 77, 81, 85, 90, 94, 99, 104, 108, 113, 118, 122, 127, 132, 137, 142, 147, 152, 157, 162, 167, 172, 178, 183, 188, 193, 198, 204, 209, 214, 220, 225, 231, 236, 242, 247, 253, 258
OFFSET
1,2
COMMENTS
We use for li(x) and x > 1 the Cauchy principal value of Integral_{0..x} dt/log(t). This is stated to prevent confusion with Li(x), which is often defined so that Li(x) = li(x) - li(2).
CROSSREFS
KEYWORD
nonn
AUTHOR
Thomas Scheuerle, Jul 25 2022
STATUS
approved