A343451 - OEIS

A343451

Primes in A014342.

29, 41543, 230849, 267667, 895571, 1440449, 3171593, 3400087, 9305809, 9790127, 10811683, 11905679, 17067151, 19353953, 20161963, 25516163, 77893657, 82199893, 96107729, 131707319, 164721871, 171958543, 211522679, 266929763, 337603949, 361747937, 393590563, 420428507, 635794961, 752500141

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OFFSET

1,1

COMMENTS

Primes of the form Sum_{i=1..n} prime(i) * prime(n+1-i).

LINKS

Robert Israel, Table of n, a(n) for n = 1..1500

EXAMPLE

For n=3, a(3) = 230849 = A014342(47) is prime.

MAPLE

G:= expand(add(ithprime(i)*x^i, i=1..2000)^2):

select(isprime, [seq(coeff(G, x, i), i=2..2001)]);