The sequence e when b=[ 1,1,1,1,0,1,1,1,... ].

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =2a(6) =3a(7) =3a(8) =3a(9) =3a(10) =5a(11) =7a(12) =9a(13) =9a(14) =9a(15) =11a(16) =15a(17) =19a(18) =21a(19) =21a(20) =25a(21) =31a(22) =39a(23) =45a(24) =49a(25) =53a(26) =63a(27) =75a(28) =87a(29) =97