If S*2^k - 3 and S*2^k + 3 are primes for k=0 to 2, then a(n) = S/10.

Terms

a(0) =1a(1) =28a(2) =56a(3) =1204a(4) =22715a(5) =38857a(6) =63812a(7) =68684a(8) =115318a(9) =126560a(10) =139958a(11) =148274a(12) =169043a(13) =196945a(14) =204232a(15) =219065a(16) =242578a(17) =245371a(18) =316288a(19) =364672a(20) =369985a(21) =379435a(22) =442316a(23) =484274a(24) =579068a(25) =601447a(26) =606242a(27) =650342a(28) =825797a(29) =851179