Primes of the form p*q - p - q, where p and q are two successive primes.

Terms

a(0) =7a(1) =23a(2) =59a(3) =191a(4) =839a(5) =1439a(6) =1931a(7) =5039a(8) =8447a(9) =11447a(10) =23399a(11) =26891a(12) =36479a(13) =41579a(14) =46619a(15) =57119a(16) =59999a(17) =77279a(18) =110879a(19) =163199a(20) =232307a(21) =323759a(22) =370871a(23) =414731a(24) =470579a(25) =521267a(26) =566999a(27) =606791a(28) =664199a(29) =678971