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A096624 Numerators of the Riemann prime counting function. 2
0, 1, 2, 5, 7, 7, 9, 29, 16, 16, 19, 19, 22, 22, 22, 91, 103, 103, 115, 115, 115, 115, 127, 127, 133, 133, 137, 137, 149, 149, 161, 817, 817, 817, 817, 817, 877, 877, 877, 877, 937, 937, 997, 997, 997, 997, 1057, 1057, 1087, 1087, 1087, 1087, 1147, 1147, 1147 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

LINKS

Eric Weisstein's World of Mathematics, Riemann Prime Counting Function

FORMULA

Let Sk{f(k)}= sum(k>=2,f(k)), then the g.f. of A096624/A096625 can be written as

(1/1)*Sa{(x^a)/(1-x)} - (1/2)*Sa{ Sb{ (x^(a*b))/(1-x)}} + (1/3)*Sa{ Sb{ Sc{ (x^(a*b*c))/(1-x)}}} - (1/4)*Sa{ Sb{ Sc{ Sd{ (x^(a*b*c*d))/(1-x)}}}} + ... [From Mats Granvik (mats.granvik(AT)abo.fi), Apr 6 2011]

EXAMPLE

0, 1, 2, 5/2, 7/2, 7/2, 9/2, 29/6, 16/3, 16/3, 19/3, ...

CROSSREFS

Cf. A096625.

Sequence in context: A021392 A131688 A199590 * A145378 A069887 A120303

Adjacent sequences:  A096621 A096622 A096623 * A096625 A096626 A096627

KEYWORD

nonn

AUTHOR

Eric Weisstein (eric(AT)weisstein.com), Jul 01, 2004

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Last modified February 16 11:42 EST 2012. Contains 205907 sequences.