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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A101310 Sum((prime(k)*10^(k),k=1..n))). 0
0, 20, 320, 5320, 75320, 1175320, 14175320, 184175320, 2084175320, 25084175320, 315084175320, 3415084175320, 40415084175320, 450415084175320, 4750415084175320, 51750415084175320, 581750415084175320 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

MAPLE

seq( ( sum((ithprime(x)*10^(x), x=1..a))), a=1..20);

CROSSREFS

Sequence in context: A054621 A111778 A024387 * A159648 A078230 A187512

Adjacent sequences:  A101307 A101308 A101309 * A101311 A101312 A101313

KEYWORD

nonn

AUTHOR

Jorge Coveiro (jorgecoveiro(AT)yahoo.com), Dec 22 2004

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 16:51 EST 2012. Contains 205635 sequences.