login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A122515 a(n) = A007504(n)-A046992(n). 0
2, 4, 7, 12, 20, 30, 43, 58, 77, 102, 128, 160, 195, 232, 273, 320, 372, 426, 485, 548, 613, 684, 758, 838, 926, 1018, 1112, 1210, 1309, 1412, 1528, 1648, 1774, 1902, 2040, 2180, 2325, 2476, 2631, 2792, 2958, 3126, 3303, 3482, 3665, 3850, 4046, 4254, 4466 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

MATHEMATICA

Table[Sum[Prime[n], {n, 1, m}] - Sum[PrimePi[n], {n, 1, m}], {m, 1, 50}]

CROSSREFS

Cf. A007504, A046992.

Sequence in context: A072642 A105856 A010672 * A193840 A036372 A132218

Adjacent sequences:  A122512 A122513 A122514 * A122516 A122517 A122518

KEYWORD

nonn

AUTHOR

Roger Bagula (rlbagulatftn(AT)yahoo.com), Sep 16 2006

EXTENSIONS

Edited by N. J. A. Sloane (njas(AT)research.att.com), Sep 17 2006

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 14 23:53 EST 2012. Contains 205689 sequences.