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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A219505 Numbers that are arithmetic mean of 5 successive primes. 2

%I

%S 79,281,295,329,349,355,403,439,511,643,677,685,787,805,841,887,949,

%T 963,1171,1179,1195,1241,1327,1339,1397,1435,1463,1503,1547,1641,1685,

%U 1717,1733,1779,1811,1917,1957,1991,2033,2061,2141,2147,2347,2389,2395,2433

%N Numbers that are arithmetic mean of 5 successive primes.

%H Zak Seidov, <a href="/A219505/b219505.txt">Table of n, a(n) for n = 1..1000</a>

%e a(1) = A219478(1) = 79 = (prime(20)+...+prime(24))/5 = (71+ 73+ 79+ 83+ 89)/5.

%t Select[(Mean /@ Partition[Prime[Range[1000]], 5, 1]), IntegerQ]

%Y A219478 is subsequence.

%K nonn

%O 1,1

%A _Zak Seidov_, Nov 21 2012

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 13 16:08 EST 2019. Contains 329106 sequences. (Running on oeis4.)