a(n) = p(n)*p(n+1)*(p(n+1) - p(n)) - 1, where p(n) = prime(n).

Terms

a(0) =5a(1) =29a(2) =69a(3) =307a(4) =285a(5) =883a(6) =645a(7) =1747a(8) =4001a(9) =1797a(10) =6881a(11) =6067a(12) =3525a(13) =8083a(14) =14945a(15) =18761a(16) =7197a(17) =24521a(18) =19027a(19) =10365a(20) =34601a(21) =26227a(22) =44321a(23) =69063a(24) =39187a(25) =20805a(26) =44083a(27) =23325a(28) =49267a(29) =200913