Numbers k for which 2*k+7, 4*k+7, 6*k+7, 8*k+7, 10*k+7 and 12*k+7 are primes.

Terms

a(0) =0a(1) =75a(2) =1380a(3) =1725a(4) =4575a(5) =7095a(6) =10020a(7) =10620a(8) =31800a(9) =38355a(10) =58710a(11) =61170a(12) =67125a(13) =92235a(14) =92310a(15) =94845a(16) =118530a(17) =137415a(18) =156000a(19) =168765a(20) =189705a(21) =238815a(22) =249450a(23) =257370a(24) =339375a(25) =353925a(26) =507270a(27) =584265a(28) =590040a(29) =617265