Smallest prime followed by three gaps that are multiples of 2n.

Terms

a(0) =3a(1) =199a(2) =251a(3) =20809a(4) =18839a(5) =12829a(6) =158867a(7) =156733a(8) =74453a(9) =83477a(10) =1736281a(11) =1397609a(12) =17702303a(13) =10531373a(14) =642427a(15) =58880711a(16) =120520087a(17) =5321191a(18) =304115129a(19) =31824769a(20) =5412049a(21) =125954987a(22) =188966023a(23) =55410683a(24) =162282233a(25) =958613011a(26) =400948369a(27) =373978313a(28) =3298545589a(29) =253444777