n a(n) Hardy-Littlewood np / (expected number of primes)
constant (rounded) obtained from Li((10^9)^3+a(n))
np (x<=10^9) (similar to table in A331946)
1 2 1.298539558 22009948 1.34597
2 5 1.142678324 19372839 1.18470
3 6 0.822719287 13944026 0.85272
4 13 0.814418714 13802244 0.84405
5 15 0.784789179 13305075 0.81364
...
20 15287 0.422422003 7162493 0.43801
21 15378 0.419380705 7108723 0.43472
22 15826 0.416982640 7068923 0.43228
23 25670 0.388993112 6597073 0.40343
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