login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A221867 Let m = A153022(n); a(n) = (1 + sum_{i=1..m} prime(i)^2)/(1+m). 0

%I #20 Apr 20 2013 12:34:38

%S 54,218,222054,669806,155593313228,31860927184920,37843679840313254,

%T 5349233671440437948,65075392901385088766,102744428793110424984,

%U 251471854505406311064463,1074272348712875302655077,1114427338015137279788981

%N Let m = A153022(n); a(n) = (1 + sum_{i=1..m} prime(i)^2)/(1+m).

%e For n=2, m=10, a(2) = 2398/11=218.

%Y Cf. A007504, A045345, A171399, A050247, A050248, A024450, A111441, A217599, A217600, A122140, A223936, A223937, A024525, A153022.

%K nonn

%O 1,1

%A _Robert Price_, Apr 10 2013

%E Definition corrected by _N. J. A. Sloane_, Apr 20 2013

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 04:14 EDT 2024. Contains 371918 sequences. (Running on oeis4.)