A134622 - OEIS

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A134622

Products pq ("semiprimes") of two primes p and q >= p such that q+2 is a prime.

6, 9, 10, 15, 22, 25, 33, 34, 51, 55, 58, 77, 82, 85, 87, 118, 119, 121, 123, 142, 145, 177, 187, 202, 203, 205, 213, 214, 221, 274, 287, 289, 295, 298, 303, 319, 321, 355, 358, 377, 382, 394, 411, 413, 447, 451, 454, 478, 493, 497, 505, 533, 535, 537, 538, 551, 562, 573

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..58.

MAPLE

p:=ithprime;

t1:=[];

for i from 1 to 100 do

p1:=p(i);

for j from i to 100 do

p2:=p(j);