The least number having n representations as p*q - p - q for primes p <= q.

Terms

a(0) =2a(1) =0a(2) =3a(3) =35a(4) =71a(5) =1151a(6) =1079a(7) =4199a(8) =11879a(9) =7559a(10) =32759a(11) =30239a(12) =75599a(13) =171359a(14) =241919a(15) =251999a(16) =262079a(17) =393119a(18) =604799a(19) =665279a(20) =1572479a(21) =1834559a(22) =2827439a(23) =2570399a(24) =2358719a(25) =7862399a(26) =7814015a(27) =5405399a(28) =6683039a(29) =18017999