Numbers k such that k![10]-2 is prime, where k![10] is the ten-fold multifactorial.

Terms

a(0) =4a(1) =5a(2) =7a(3) =9a(4) =13a(5) =15a(6) =21a(7) =25a(8) =29a(9) =31a(10) =33a(11) =41a(12) =45a(13) =49a(14) =77a(15) =195a(16) =197a(17) =199a(18) =211a(19) =309a(20) =319a(21) =345a(22) =349a(23) =395a(24) =509a(25) =533a(26) =539a(27) =597a(28) =615a(29) =705