Numbers k where records occur for d(k+1)/d(k), where d(k) is A000005(k).

Terms

a(0) =1a(1) =11a(2) =23a(3) =47a(4) =59a(5) =167a(6) =179a(7) =239a(8) =359a(9) =719a(10) =839a(11) =1259a(12) =2879a(13) =3359a(14) =5039a(15) =7559a(16) =10079a(17) =21839a(18) =33599a(19) =35279a(20) =37799a(21) =55439a(22) =100799a(23) =110879a(24) =166319a(25) =262079a(26) =327599a(27) =415799a(28) =665279a(29) =831599