A365277 Numbers of the form prime(i)*prime(j)*prime(i+j).

12, 30, 63, 70, 154, 165, 273, 286, 325, 442, 561, 595, 646, 741, 874, 931, 1045, 1173, 1334, 1495, 1653, 1771, 1798, 2139, 2294, 2465, 2639, 2945, 3034, 3219, 3509, 3526, 3689, 3813, 4042, 4255, 4433, 4773, 4921, 4982, 5781, 5945, 6253, 6254, 6601, 6665, 6837, 6919, 7198, 8174, 8319, 8569, 8695

Offset: 1

Author

Robert Israel, Aug 30 2023

Keywords

• nonn

Comments

Members of A364462 that have no proper divisor in A364462.

Examples

			a(3) = 63 is a term because 63 = 3^2 * 7 = prime(2) * prime(2) * prime(2+2).
		

Links

• Robert Israel, Table of n, a(n) for n = 1..10000

Crossrefs

Intersection of A014612 and A364462.

Programs

Maple

N:= 10^4: # for terms <= N
S:= NULL:
for i from 1 do
  p:= ithprime(i);
  if 2*p^2 > N then break fi;
  for j from 1 to i do
    v:= p * ithprime(j)*ithprime(i+j);
    if v > N then break fi;
    S:= S,v
  od
od:
sort([S]);