[seqfan] A posible new sequence

Claudio Meller claudiomeller at gmail.com
Sat Apr 30 14:54:50 CEST 2016


Consider the following sequence
a(n) = is the least posible sum of a sequence consisting of exactly Prime
(i) multiples of Prime (i) with i = 1 to n

Examples
a1 = 6  (sequence 2,4)
a2 = 20 (sequence 2,3,6,9)
a3 = 87 (3,9,5,10,15,20,25)
This sequence have two and only two multiples of 2, three and only three
multiples of 3 and 5 multiples of 5

a4 = 307 (?)
a5 = 1398 (?)

Is this an interesting sequence?

You can see the problem here :

http://simplementenumeros.blogspot.com.ar/2016/04/1443-extension-del-problema-anterior.html

and solutions were provided by Mmonchi

-- 
Claudio Meller
http://grageasdefarmacia.blogspot.com
http://todoanagramas.blogspot.com/
http://simplementenumeros.blogspot.com/



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