

A191472


a(n) = 2*prime(n+2)  prime(n+1)  prime(n).


1



5, 6, 10, 8, 10, 8, 10, 16, 10, 14, 14, 8, 10, 16, 18, 10, 14, 14, 8, 14, 14, 16, 22, 16, 8, 10, 8, 10, 32, 22, 16, 10, 22, 14, 14, 18, 14, 16, 18, 10, 22, 14, 10, 8, 26, 36, 20, 8, 10, 16, 10, 22, 22, 18, 18, 10, 14, 14, 8, 22, 38, 22, 8, 10, 32, 26, 26, 14
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OFFSET

1,1


COMMENTS

For n > 2, all terms >= 8 and all even integers are possible except for 12.


LINKS

Zak Seidov, Table of n, a(n) for n = 1..1000
Charles R Greathouse IV, Record values


EXAMPLE

a(1) = 2*prime(3)  prime(2)  prime(1) = 2*5  3  2 = 5.


MATHEMATICA

ps = Prime[Range[100]]; Table[2*ps[[n+2]]  ps[[n+1]]  ps[[n]], {n, Length[ps]  2}] (* T. D. Noe, Aug 27 2012 *)


PROG

(PARI) first(n)=my(v=vector(n), p=2, q=3, k); forprime(r=5, , if(k++>n, break); v[k]=2*rqp; p=q; q=r); v \\ Charles R Greathouse IV, Oct 03 2017


CROSSREFS

Cf. A096379.
Sequence in context: A273039 A019125 A019205 * A189056 A340325 A247561
Adjacent sequences: A191469 A191470 A191471 * A191473 A191474 A191475


KEYWORD

nonn


AUTHOR

Zak Seidov, Aug 27 2012


STATUS

approved



